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Entry title:

Antimicrobial resistance in Klebsiella pneumoniae (K. pneumoniae)

Last updated on Thursday, 29 May 2025 at 04:00pm

This page provides information on resistance to antimicrobials in Klebsiella pneumoniae bacteraemia (bacteria found in blood specimens). Data breakdowns are available for England, by UKHSA Region and by Integrated Care Board.

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Overview

Antibiotics are grouped based on the UK-AWaRe classification. These are:

Access
Access antibiotics are with a narrow spectrum of activity, fewer side effects, lower costs, and importantly lower resistance potential. These are first or second choice antibiotics recommended for empiric treatment of the most common infections and should be widely available. That is to say, these antibiotics should offer the best therapeutic value while minimizing the potential for resistance.

Watch
Watch antibiotics have a higher resistance potential and are broader-spectrum antibiotics. These are first or second choice antibiotics indicated for a limited number of infective syndromes. As these antibiotics are considered to have a higher potential for selection of AMR, their use should be carefully monitored.

Reserve
Reserve antibiotics are “last resort” antibiotics, including new antibiotics. These are used for highly selected patients (life-threatening infections due to multi-drug-resistant bacteria) and are closely monitored and prioritized as targets of stewardship programmes to ensure continued effectiveness.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to co-amoxiclav, ciprofloxacin, gentamicin, piperacillin with tazobactam, amikacin, carbapenems or third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere are 7 plots on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is plot number 1 on this chart. This is a dark blue solid line plot. The plot has a label of 'Amikacin (Watch)'. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 0.71 on 01 April 2020 to 1.0 on 01 January 2021. It rose from 0.77 on 01 February 2021 to 2.62 on 01 November 2021. It rose from 2.43 on 01 December 2021 to 2.95 on 01 September 2022. It fell from 3.07 on 01 October 2022 to 2.22 on 01 July 2023. It rose from 2.17 on 01 August 2023 to 2.53 on 01 May 2024. And finally. It rose from 2.89 on 01 June 2024 to 3.12 on 01 February 2025. This is plot number 2 on this chart. This is a turquoise solid line plot. The plot has a label of 'Carbapenems (Reserve)'. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 0.53 on 01 April 2020 to 1.19 on 01 January 2021. It rose from 1.13 on 01 February 2021 to 1.48 on 01 November 2021. It rose from 1.66 on 01 December 2021 to 1.81 on 01 September 2022. It fell from 1.76 on 01 October 2022 to 1.22 on 01 July 2023. It fell from 1.48 on 01 August 2023 to 1.38 on 01 May 2024. And finally. It fell from 1.39 on 01 June 2024 to 1.32 on 01 February 2025. This is plot number 3 on this chart. This is a dark pink solid line plot. The plot has a label of 'Ciprofloxacin (Watch)'. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 13.34 on 01 April 2020 to 13.76 on 01 January 2021. It rose from 14.51 on 01 February 2021 to 17.0 on 01 November 2021. It fell from 17.48 on 01 December 2021 to 15.79 on 01 September 2022. It rose from 15.98 on 01 October 2022 to 18.95 on 01 July 2023. It rose from 17.14 on 01 August 2023 to 18.67 on 01 May 2024. And finally. It fell from 18.53 on 01 June 2024 to 18.46 on 01 February 2025. This is plot number 4 on this chart. This is a orange solid line plot. The plot has a label of 'Co-amoxiclav (Watch)'. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 29.82 on 01 April 2020 to 32.19 on 01 January 2021. It fell from 31.0 on 01 February 2021 to 30.84 on 01 November 2021. It fell from 31.87 on 01 December 2021 to 30.12 on 01 September 2022. It rose from 31.47 on 01 October 2022 to 32.28 on 01 July 2023. It rose from 31.6 on 01 August 2023 to 33.01 on 01 May 2024. And finally. It fell from 33.66 on 01 June 2024 to 32.66 on 01 February 2025. This is plot number 5 on this chart. This is a dark grey solid line plot. The plot has a label of 'Gentamicin (Access)'. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 8.84 on 01 April 2020 to 8.97 on 01 January 2021. It rose from 9.24 on 01 February 2021 to 10.54 on 01 November 2021. It fell from 10.46 on 01 December 2021 to 9.51 on 01 September 2022. It rose from 10.0 on 01 October 2022 to 10.21 on 01 July 2023. It rose from 9.33 on 01 August 2023 to 10.99 on 01 May 2024. And finally. It rose from 11.81 on 01 June 2024 to 12.85 on 01 February 2025. This is plot number 6 on this chart. This is a light purple solid line plot. The plot has a label of 'Piperacillin with tazobactam (Watch)'. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 15.01 on 01 April 2020 to 18.27 on 01 January 2021. It rose from 18.18 on 01 February 2021 to 19.59 on 01 November 2021. The date fluctuates between 19.83 on 01 December 2021, ending with the same value on 01 September 2022. It rose from 20.03 on 01 October 2022 to 22.77 on 01 July 2023. It rose from 23.21 on 01 August 2023 to 23.75 on 01 May 2024. And finally. It rose from 23.93 on 01 June 2024 to 24.18 on 01 February 2025. This is plot number 7 on this chart. This is a burgundy solid line plot. The plot has a label of 'Third-generation cephalosporins (Watch)'. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 15.18 on 01 April 2020 to 15.59 on 01 January 2021. It rose from 15.66 on 01 February 2021 to 18.11 on 01 November 2021. It fell from 17.76 on 01 December 2021 to 16.78 on 01 September 2022. It rose from 17.98 on 01 October 2022 to 18.8 on 01 July 2023. It rose from 17.31 on 01 August 2023 to 18.59 on 01 May 2024. And finally. It fell from 18.99 on 01 June 2024 to 18.96 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to co-amoxiclav, ciprofloxacin, gentamicin, piperacillin with tazobactam, amikacin, carbapenems or third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthAmikacin (Watch)Carbapenems (Reserve)
1 Feb 20253.121.32
1 Jan 20252.891.26
1 Dec 20243.131.66
1 Nov 20242.881.91
1 Oct 20242.721.85
1 Sep 20242.601.70
1 Aug 20242.641.47
1 Jul 20242.941.70
1 Jun 20242.891.39
1 May 20242.531.38
1 Apr 20242.551.49
1 Mar 20242.151.70
1 Feb 20242.531.70
1 Jan 20241.711.38
1 Dec 20231.901.48
1 Nov 20231.801.58
1 Oct 20231.971.77
1 Sep 20231.881.66
1 Aug 20232.171.48
1 Jul 20232.221.22
1 Jun 20232.591.36
1 May 20232.481.49
1 Apr 20232.261.64
1 Mar 20232.251.68
1 Feb 20231.771.67
1 Jan 20232.371.59
1 Dec 20222.611.52
1 Nov 20223.201.89
1 Oct 20223.071.76
1 Sep 20222.951.81
1 Aug 20222.141.62
1 Jul 20221.661.73
1 Jun 20221.961.66
1 May 20222.421.27
1 Apr 20223.301.01
1 Mar 20223.361.01
1 Feb 20222.961.14
1 Jan 20222.901.72
1 Dec 20212.431.66
1 Nov 20212.621.48
1 Oct 20212.170.99
1 Sep 20212.130.76
1 Aug 20211.690.74
1 Jul 20211.550.75
1 Jun 20211.220.80
1 May 20211.530.97
1 Apr 20211.181.16
1 Mar 20210.760.84
1 Feb 20210.771.13
1 Jan 20211.001.19
1 Dec 20201.331.38
1 Nov 20201.150.88
1 Oct 20200.750.46
1 Sep 20201.140.43
1 Aug 20201.270.45
1 Jul 20201.710.68
1 Jun 20201.290.53
1 May 20201.000.66
1 Apr 20200.710.53
MonthCiprofloxacin (Watch)Co-amoxiclav (Watch)
1 Feb 202518.4632.66
1 Jan 202519.0633.38
1 Dec 202420.0733.43
1 Nov 202420.3535.38
1 Oct 202420.1934.36
1 Sep 202419.4233.84
1 Aug 202419.0333.08
1 Jul 202419.0633.78
1 Jun 202418.5333.66
1 May 202418.6733.01
1 Apr 202417.6831.64
1 Mar 202417.7331.98
1 Feb 202417.5133.23
1 Jan 202418.2434.91
1 Dec 202318.6336.42
1 Nov 202319.3235.83
1 Oct 202318.3834.05
1 Sep 202318.0532.87
1 Aug 202317.1431.60
1 Jul 202318.9532.28
1 Jun 202319.4032.52
1 May 202319.3932.12
1 Apr 202318.1432.58
1 Mar 202317.9433.27
1 Feb 202317.2133.30
1 Jan 202317.9633.10
1 Dec 202217.5132.15
1 Nov 202217.6132.16
1 Oct 202215.9831.47
1 Sep 202215.7930.12
1 Aug 202215.2329.05
1 Jul 202215.8127.15
1 Jun 202216.7227.76
1 May 202217.6629.13
1 Apr 202218.0030.84
1 Mar 202217.5430.49
1 Feb 202217.0630.31
1 Jan 202217.4031.57
1 Dec 202117.4831.87
1 Nov 202117.0030.84
1 Oct 202116.0228.29
1 Sep 202115.3828.36
1 Aug 202115.2429.32
1 Jul 202115.2430.07
1 Jun 202115.2729.20
1 May 202115.0528.08
1 Apr 202114.9328.80
1 Mar 202113.9929.26
1 Feb 202114.5131.00
1 Jan 202113.7632.19
1 Dec 202014.8433.19
1 Nov 202014.1631.31
1 Oct 202014.5229.27
1 Sep 202013.5026.85
1 Aug 202014.5928.46
1 Jul 202015.0029.12
1 Jun 202015.2130.81
1 May 202013.3429.67
1 Apr 202013.3429.82
MonthGentamicin (Access)Piperacillin with tazobactam (Watch)
1 Feb 202512.8524.18
1 Jan 202511.9723.52
1 Dec 202412.2824.37
1 Nov 202412.7124.95
1 Oct 202413.4824.51
1 Sep 202413.8323.15
1 Aug 202413.6122.76
1 Jul 202412.3923.38
1 Jun 202411.8123.93
1 May 202410.9923.75
1 Apr 202410.6123.39
1 Mar 202410.5323.61
1 Feb 202411.7923.18
1 Jan 202412.0024.76
1 Dec 202312.0325.47
1 Nov 202311.1926.39
1 Oct 202310.7824.66
1 Sep 20239.4224.38
1 Aug 20239.3323.21
1 Jul 202310.2122.77
1 Jun 202311.4422.75
1 May 202310.9522.36
1 Apr 202310.4623.42
1 Mar 202310.2823.56
1 Feb 202310.0923.78
1 Jan 202310.5223.70
1 Dec 202210.4922.06
1 Nov 202210.8321.30
1 Oct 202210.0020.03
1 Sep 20229.5119.83
1 Aug 20229.0919.69
1 Jul 20228.3118.45
1 Jun 20228.8819.14
1 May 20229.1119.96
1 Apr 202210.5120.80
1 Mar 202210.2619.18
1 Feb 202210.3218.54
1 Jan 202210.4919.12
1 Dec 202110.4619.83
1 Nov 202110.5419.59
1 Oct 20219.5917.85
1 Sep 20219.0417.86
1 Aug 20218.3817.54
1 Jul 20218.2019.24
1 Jun 20218.2518.66
1 May 20218.6217.94
1 Apr 20219.3418.01
1 Mar 20219.1417.43
1 Feb 20219.2418.18
1 Jan 20218.9718.27
1 Dec 20209.7219.08
1 Nov 20208.7718.18
1 Oct 20207.8916.12
1 Sep 20206.4614.58
1 Aug 20207.1414.88
1 Jul 20207.3416.51
1 Jun 20207.8517.74
1 May 20207.6316.06
1 Apr 20208.8415.01
MonthThird-generation cephalosporins (Watch)
1 Feb 202518.96
1 Jan 202519.22
1 Dec 202420.60
1 Nov 202421.38
1 Oct 202422.36
1 Sep 202421.56
1 Aug 202420.60
1 Jul 202419.40
1 Jun 202418.99
1 May 202418.59
1 Apr 202417.42
1 Mar 202416.84
1 Feb 202417.42
1 Jan 202418.50
1 Dec 202319.41
1 Nov 202320.13
1 Oct 202319.12
1 Sep 202318.90
1 Aug 202317.31
1 Jul 202318.80
1 Jun 202319.03
1 May 202319.15
1 Apr 202319.02
1 Mar 202318.75
1 Feb 202319.12
1 Jan 202319.48
1 Dec 202219.65
1 Nov 202219.18
1 Oct 202217.98
1 Sep 202216.78
1 Aug 202216.59
1 Jul 202215.78
1 Jun 202216.66
1 May 202216.70
1 Apr 202217.66
1 Mar 202217.42
1 Feb 202216.85
1 Jan 202217.90
1 Dec 202117.76
1 Nov 202118.11
1 Oct 202115.81
1 Sep 202115.52
1 Aug 202115.39
1 Jul 202115.87
1 Jun 202115.87
1 May 202115.66
1 Apr 202116.01
1 Mar 202115.17
1 Feb 202115.66
1 Jan 202115.59
1 Dec 202016.40
1 Nov 202015.39
1 Oct 202014.39
1 Sep 202013.78
1 Aug 202014.51
1 Jul 202015.60
1 Jun 202015.74
1 May 202014.67
1 Apr 202015.18
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Amikacin

Testing

Rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to amikacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid bar plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaNumberTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 373.33 on 01 April 2020 to 433.33 on 01 January 2021. It rose from 431.0 on 01 February 2021 to 495.67 on 01 November 2021. It rose from 481.0 on 01 December 2021 to 486.0 on 01 September 2022. It fell from 499.0 on 01 October 2022 to 495.0 on 01 July 2023. It fell from 521.33 on 01 August 2023 to 500.0 on 01 May 2024. And finally. It rose from 484.67 on 01 June 2024 to 502.33 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to amikacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthNumber tested
1 Feb 2025502.33
1 Jan 2025530.33
1 Dec 2024543.67
1 Nov 2024555.33
1 Oct 2024576.67
1 Sep 2024589.00
1 Aug 2024555.67
1 Jul 2024520.67
1 Jun 2024484.67
1 May 2024500.00
1 Apr 2024483.00
1 Mar 2024480.33
1 Feb 2024473.67
1 Jan 2024506.00
1 Dec 2023544.33
1 Nov 2023556.00
1 Oct 2023557.33
1 Sep 2023533.33
1 Aug 2023521.33
1 Jul 2023495.00
1 Jun 2023475.33
1 May 2023443.33
1 Apr 2023428.00
1 Mar 2023430.33
1 Feb 2023452.00
1 Jan 2023478.33
1 Dec 2022485.00
1 Nov 2022510.67
1 Oct 2022499.00
1 Sep 2022486.00
1 Aug 2022436.33
1 Jul 2022421.00
1 Jun 2022407.33
1 May 2022413.67
1 Apr 2022404.00
1 Mar 2022406.33
1 Feb 2022405.33
1 Jan 2022448.33
1 Dec 2021481.00
1 Nov 2021495.67
1 Oct 2021461.33
1 Sep 2021438.67
1 Aug 2021413.00
1 Jul 2021407.33
1 Jun 2021381.33
1 May 2021392.00
1 Apr 2021395.00
1 Mar 2021440.33
1 Feb 2021431.00
1 Jan 2021433.33
1 Dec 2020401.00
1 Nov 2020405.00
1 Oct 2020399.67
1 Sep 2020381.00
1 Aug 2020366.67
1 Jul 2020350.33
1 Jun 2020361.00
1 May 2020367.00
1 Apr 2020373.33
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About

Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Testing

Rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to amikacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 72.01 on 01 April 2020 to 72.17 on 01 January 2021. It fell from 71.36 on 01 February 2021 to 71.22 on 01 November 2021. It fell from 70.74 on 01 December 2021 to 69.23 on 01 September 2022. It rose from 69.5 on 01 October 2022 to 69.52 on 01 July 2023. It fell from 69.47 on 01 August 2023 to 69.44 on 01 May 2024. And finally. It fell from 67.69 on 01 June 2024 to 66.14 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to amikacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% tested
1 Feb 202566.14
1 Jan 202567.09
1 Dec 202467.37
1 Nov 202468.52
1 Oct 202468.98
1 Sep 202471.05
1 Aug 202469.81
1 Jul 202469.71
1 Jun 202467.69
1 May 202469.44
1 Apr 202469.30
1 Mar 202469.46
1 Feb 202468.55
1 Jan 202469.99
1 Dec 202371.20
1 Nov 202370.74
1 Oct 202369.28
1 Sep 202368.86
1 Aug 202369.47
1 Jul 202369.52
1 Jun 202369.55
1 May 202368.58
1 Apr 202368.48
1 Mar 202368.47
1 Feb 202369.54
1 Jan 202369.99
1 Dec 202269.78
1 Nov 202270.93
1 Oct 202269.50
1 Sep 202269.23
1 Aug 202268.66
1 Jul 202270.88
1 Jun 202270.78
1 May 202270.00
1 Apr 202270.88
1 Mar 202270.98
1 Feb 202270.80
1 Jan 202270.00
1 Dec 202170.74
1 Nov 202171.22
1 Oct 202169.74
1 Sep 202169.09
1 Aug 202168.15
1 Jul 202168.87
1 Jun 202168.65
1 May 202170.00
1 Apr 202171.17
1 Mar 202172.49
1 Feb 202171.36
1 Jan 202172.17
1 Dec 202070.60
1 Nov 202070.56
1 Oct 202068.56
1 Sep 202068.40
1 Aug 202068.80
1 Jul 202068.63
1 Jun 202070.23
1 May 202070.85
1 Apr 202072.01
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to amikacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 0.71 on 01 April 2020 to 1.0 on 01 January 2021. It rose from 0.77 on 01 February 2021 to 2.62 on 01 November 2021. It rose from 2.43 on 01 December 2021 to 2.95 on 01 September 2022. It fell from 3.07 on 01 October 2022 to 2.22 on 01 July 2023. It rose from 2.17 on 01 August 2023 to 2.53 on 01 May 2024. And finally. It rose from 2.89 on 01 June 2024 to 3.12 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to amikacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% resistant
1 Feb 20253.12
1 Jan 20252.89
1 Dec 20243.13
1 Nov 20242.88
1 Oct 20242.72
1 Sep 20242.60
1 Aug 20242.64
1 Jul 20242.94
1 Jun 20242.89
1 May 20242.53
1 Apr 20242.55
1 Mar 20242.15
1 Feb 20242.53
1 Jan 20241.71
1 Dec 20231.90
1 Nov 20231.80
1 Oct 20231.97
1 Sep 20231.88
1 Aug 20232.17
1 Jul 20232.22
1 Jun 20232.59
1 May 20232.48
1 Apr 20232.26
1 Mar 20232.25
1 Feb 20231.77
1 Jan 20232.37
1 Dec 20222.61
1 Nov 20223.20
1 Oct 20223.07
1 Sep 20222.95
1 Aug 20222.14
1 Jul 20221.66
1 Jun 20221.96
1 May 20222.42
1 Apr 20223.30
1 Mar 20223.36
1 Feb 20222.96
1 Jan 20222.90
1 Dec 20212.43
1 Nov 20212.62
1 Oct 20212.17
1 Sep 20212.13
1 Aug 20211.69
1 Jul 20211.55
1 Jun 20211.22
1 May 20211.53
1 Apr 20211.18
1 Mar 20210.76
1 Feb 20210.77
1 Jan 20211.00
1 Dec 20201.33
1 Nov 20201.15
1 Oct 20200.75
1 Sep 20201.14
1 Aug 20201.27
1 Jul 20201.71
1 Jun 20201.29
1 May 20201.00
1 Apr 20200.71
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About

Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Carbapenems

Testing

Rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to carbapenems. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid bar plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaNumberTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 507.33 on 01 April 2020 to 587.0 on 01 January 2021. It rose from 591.33 on 01 February 2021 to 677.0 on 01 November 2021. It rose from 661.0 on 01 December 2021 to 681.33 on 01 September 2022. It fell from 700.33 on 01 October 2022 to 685.33 on 01 July 2023. It fell from 720.33 on 01 August 2023 to 699.33 on 01 May 2024. And finally. It rose from 695.67 on 01 June 2024 to 733.67 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to carbapenems. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthNumber tested
1 Feb 2025733.67
1 Jan 2025767.33
1 Dec 2024781.33
1 Nov 2024786.67
1 Oct 2024810.00
1 Sep 2024802.67
1 Aug 2024770.00
1 Jul 2024725.00
1 Jun 2024695.67
1 May 2024699.33
1 Apr 2024673.33
1 Mar 2024667.33
1 Feb 2024668.00
1 Jan 2024703.00
1 Dec 2023743.33
1 Nov 2023760.00
1 Oct 2023772.33
1 Sep 2023743.33
1 Aug 2023720.33
1 Jul 2023685.33
1 Jun 2023660.33
1 May 2023626.67
1 Apr 2023611.00
1 Mar 2023614.33
1 Feb 2023637.67
1 Jan 2023669.00
1 Dec 2022681.67
1 Nov 2022704.33
1 Oct 2022700.33
1 Sep 2022681.33
1 Aug 2022617.67
1 Jul 2022579.00
1 Jun 2022563.67
1 May 2022577.00
1 Apr 2022560.67
1 Mar 2022559.33
1 Feb 2022557.67
1 Jan 2022620.67
1 Dec 2021661.00
1 Nov 2021677.00
1 Oct 2021640.67
1 Sep 2021612.67
1 Aug 2021585.67
1 Jul 2021576.00
1 Jun 2021544.33
1 May 2021548.67
1 Apr 2021544.00
1 Mar 2021595.33
1 Feb 2021591.33
1 Jan 2021587.00
1 Dec 2020556.67
1 Nov 2020565.00
1 Oct 2020574.33
1 Sep 2020547.33
1 Aug 2020517.33
1 Jul 2020493.33
1 Jun 2020499.33
1 May 2020505.67
1 Apr 2020507.33
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Testing

Rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to carbapenems. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It fell from 97.88 on 01 April 2020 to 97.83 on 01 January 2021. It fell from 97.85 on 01 February 2021 to 97.41 on 01 November 2021. It fell from 97.21 on 01 December 2021 to 97.01 on 01 September 2022. It fell from 97.49 on 01 October 2022 to 96.21 on 01 July 2023. It rose from 96.0 on 01 August 2023 to 97.08 on 01 May 2024. And finally. It fell from 97.2 on 01 June 2024 to 96.57 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to carbapenems. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% tested
1 Feb 202596.57
1 Jan 202597.09
1 Dec 202496.90
1 Nov 202497.04
1 Oct 202497.01
1 Sep 202496.74
1 Aug 202496.86
1 Jul 202497.18
1 Jun 202497.20
1 May 202497.08
1 Apr 202496.56
1 Mar 202496.53
1 Feb 202496.81
1 Jan 202497.23
1 Dec 202397.25
1 Nov 202396.69
1 Oct 202396.02
1 Sep 202395.99
1 Aug 202396.00
1 Jul 202396.21
1 Jun 202396.63
1 May 202396.90
1 Apr 202397.76
1 Mar 202397.77
1 Feb 202398.00
1 Jan 202397.95
1 Dec 202297.99
1 Nov 202297.91
1 Oct 202297.49
1 Sep 202297.01
1 Aug 202297.17
1 Jul 202297.47
1 Jun 202297.91
1 May 202297.80
1 Apr 202298.25
1 Mar 202297.73
1 Feb 202297.38
1 Jan 202296.88
1 Dec 202197.21
1 Nov 202197.41
1 Oct 202196.82
1 Sep 202196.53
1 Aug 202196.53
1 Jul 202197.46
1 Jun 202198.02
1 May 202197.86
1 Apr 202198.02
1 Mar 202198.02
1 Feb 202197.85
1 Jan 202197.83
1 Dec 202097.89
1 Nov 202098.43
1 Oct 202098.63
1 Sep 202098.20
1 Aug 202097.18
1 Jul 202096.67
1 Jun 202097.08
1 May 202097.49
1 Apr 202097.88
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to carbapenems. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 0.53 on 01 April 2020 to 1.19 on 01 January 2021. It rose from 1.13 on 01 February 2021 to 1.48 on 01 November 2021. It rose from 1.66 on 01 December 2021 to 1.81 on 01 September 2022. It fell from 1.76 on 01 October 2022 to 1.22 on 01 July 2023. It fell from 1.48 on 01 August 2023 to 1.38 on 01 May 2024. And finally. It fell from 1.39 on 01 June 2024 to 1.32 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to carbapenems. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% resistant
1 Feb 20251.32
1 Jan 20251.26
1 Dec 20241.66
1 Nov 20241.91
1 Oct 20241.85
1 Sep 20241.70
1 Aug 20241.47
1 Jul 20241.70
1 Jun 20241.39
1 May 20241.38
1 Apr 20241.49
1 Mar 20241.70
1 Feb 20241.70
1 Jan 20241.38
1 Dec 20231.48
1 Nov 20231.58
1 Oct 20231.77
1 Sep 20231.66
1 Aug 20231.48
1 Jul 20231.22
1 Jun 20231.36
1 May 20231.49
1 Apr 20231.64
1 Mar 20231.68
1 Feb 20231.67
1 Jan 20231.59
1 Dec 20221.52
1 Nov 20221.89
1 Oct 20221.76
1 Sep 20221.81
1 Aug 20221.62
1 Jul 20221.73
1 Jun 20221.66
1 May 20221.27
1 Apr 20221.01
1 Mar 20221.01
1 Feb 20221.14
1 Jan 20221.72
1 Dec 20211.66
1 Nov 20211.48
1 Oct 20210.99
1 Sep 20210.76
1 Aug 20210.74
1 Jul 20210.75
1 Jun 20210.80
1 May 20210.97
1 Apr 20211.16
1 Mar 20210.84
1 Feb 20211.13
1 Jan 20211.19
1 Dec 20201.38
1 Nov 20200.88
1 Oct 20200.46
1 Sep 20200.43
1 Aug 20200.45
1 Jul 20200.68
1 Jun 20200.53
1 May 20200.66
1 Apr 20200.53
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Ciprofloxacin

Testing

Rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to ciprofloxacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid bar plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaNumberTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 494.67 on 01 April 2020 to 574.33 on 01 January 2021. It rose from 579.0 on 01 February 2021 to 657.0 on 01 November 2021. It rose from 639.0 on 01 December 2021 to 663.0 on 01 September 2022. It fell from 673.67 on 01 October 2022 to 654.33 on 01 July 2023. It fell from 688.33 on 01 August 2023 to 657.0 on 01 May 2024. And finally. It rose from 653.0 on 01 June 2024 to 679.0 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to ciprofloxacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthNumber tested
1 Feb 2025679.00
1 Jan 2025704.67
1 Dec 2024722.33
1 Nov 2024725.67
1 Oct 2024757.67
1 Sep 2024753.33
1 Aug 2024725.33
1 Jul 2024678.67
1 Jun 2024653.00
1 May 2024657.00
1 Apr 2024641.00
1 Mar 2024633.67
1 Feb 2024634.00
1 Jan 2024661.67
1 Dec 2023705.00
1 Nov 2023730.00
1 Oct 2023743.67
1 Sep 2023714.67
1 Aug 2023688.33
1 Jul 2023654.33
1 Jun 2023632.33
1 May 2023600.00
1 Apr 2023584.33
1 Mar 2023585.33
1 Feb 2023606.33
1 Jan 2023638.33
1 Dec 2022651.00
1 Nov 2022677.67
1 Oct 2022673.67
1 Sep 2022663.00
1 Aug 2022599.67
1 Jul 2022569.33
1 Jun 2022550.33
1 May 2022564.33
1 Apr 2022546.33
1 Mar 2022547.33
1 Feb 2022545.00
1 Jan 2022601.67
1 Dec 2021639.00
1 Nov 2021657.00
1 Oct 2021628.33
1 Sep 2021604.67
1 Aug 2021575.33
1 Jul 2021562.00
1 Jun 2021528.33
1 May 2021538.33
1 Apr 2021535.67
1 Mar 2021586.00
1 Feb 2021579.00
1 Jan 2021574.33
1 Dec 2020543.67
1 Nov 2020553.33
1 Oct 2020560.33
1 Sep 2020531.00
1 Aug 2020500.33
1 Jul 2020477.67
1 Jun 2020486.67
1 May 2020492.33
1 Apr 2020494.67
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Testing

Rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to ciprofloxacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 95.37 on 01 April 2020 to 95.67 on 01 January 2021. It fell from 95.86 on 01 February 2021 to 94.53 on 01 November 2021. It rose from 93.97 on 01 December 2021 to 94.44 on 01 September 2022. It fell from 93.73 on 01 October 2022 to 91.85 on 01 July 2023. It fell from 91.73 on 01 August 2023 to 91.25 on 01 May 2024. And finally. It fell from 91.33 on 01 June 2024 to 89.46 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to ciprofloxacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% tested
1 Feb 202589.46
1 Jan 202589.11
1 Dec 202489.58
1 Nov 202489.51
1 Oct 202490.66
1 Sep 202490.83
1 Aug 202491.19
1 Jul 202490.88
1 Jun 202491.33
1 May 202491.25
1 Apr 202491.97
1 Mar 202491.61
1 Feb 202491.88
1 Jan 202491.42
1 Dec 202392.28
1 Nov 202392.88
1 Oct 202392.41
1 Sep 202392.25
1 Aug 202391.73
1 Jul 202391.85
1 Jun 202392.53
1 May 202392.88
1 Apr 202393.44
1 Mar 202393.15
1 Feb 202393.23
1 Jan 202393.41
1 Dec 202293.67
1 Nov 202294.16
1 Oct 202293.73
1 Sep 202294.44
1 Aug 202294.33
1 Jul 202295.79
1 Jun 202295.65
1 May 202295.59
1 Apr 202295.79
1 Mar 202295.63
1 Feb 202295.28
1 Jan 202293.91
1 Dec 202193.97
1 Nov 202194.53
1 Oct 202195.01
1 Sep 202195.27
1 Aug 202194.88
1 Jul 202195.09
1 Jun 202195.14
1 May 202196.07
1 Apr 202196.40
1 Mar 202196.54
1 Feb 202195.86
1 Jan 202195.67
1 Dec 202095.60
1 Nov 202096.34
1 Oct 202096.22
1 Sep 202095.33
1 Aug 202093.98
1 Jul 202093.53
1 Jun 202094.55
1 May 202094.98
1 Apr 202095.37
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to ciprofloxacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 13.34 on 01 April 2020 to 13.76 on 01 January 2021. It rose from 14.51 on 01 February 2021 to 17.0 on 01 November 2021. It fell from 17.48 on 01 December 2021 to 15.79 on 01 September 2022. It rose from 15.98 on 01 October 2022 to 18.95 on 01 July 2023. It rose from 17.14 on 01 August 2023 to 18.67 on 01 May 2024. And finally. It fell from 18.53 on 01 June 2024 to 18.46 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to ciprofloxacin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% resistant
1 Feb 202518.46
1 Jan 202519.06
1 Dec 202420.07
1 Nov 202420.35
1 Oct 202420.19
1 Sep 202419.42
1 Aug 202419.03
1 Jul 202419.06
1 Jun 202418.53
1 May 202418.67
1 Apr 202417.68
1 Mar 202417.73
1 Feb 202417.51
1 Jan 202418.24
1 Dec 202318.63
1 Nov 202319.32
1 Oct 202318.38
1 Sep 202318.05
1 Aug 202317.14
1 Jul 202318.95
1 Jun 202319.40
1 May 202319.39
1 Apr 202318.14
1 Mar 202317.94
1 Feb 202317.21
1 Jan 202317.96
1 Dec 202217.51
1 Nov 202217.61
1 Oct 202215.98
1 Sep 202215.79
1 Aug 202215.23
1 Jul 202215.81
1 Jun 202216.72
1 May 202217.66
1 Apr 202218.00
1 Mar 202217.54
1 Feb 202217.06
1 Jan 202217.40
1 Dec 202117.48
1 Nov 202117.00
1 Oct 202116.02
1 Sep 202115.38
1 Aug 202115.24
1 Jul 202115.24
1 Jun 202115.27
1 May 202115.05
1 Apr 202114.93
1 Mar 202113.99
1 Feb 202114.51
1 Jan 202113.76
1 Dec 202014.84
1 Nov 202014.16
1 Oct 202014.52
1 Sep 202013.50
1 Aug 202014.59
1 Jul 202015.00
1 Jun 202015.21
1 May 202013.34
1 Apr 202013.34
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Co-amoxiclav

Testing

Rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to co-amoxiclav. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid bar plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaNumberTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 487.33 on 01 April 2020 to 565.33 on 01 January 2021. It rose from 567.67 on 01 February 2021 to 649.67 on 01 November 2021. It rose from 638.0 on 01 December 2021 to 639.67 on 01 September 2022. It fell from 655.67 on 01 October 2022 to 645.33 on 01 July 2023. It fell from 675.0 on 01 August 2023 to 650.33 on 01 May 2024. And finally. It rose from 648.67 on 01 June 2024 to 679.67 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to co-amoxiclav. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthNumber tested
1 Feb 2025679.67
1 Jan 2025703.00
1 Dec 2024720.00
1 Nov 2024718.00
1 Oct 2024744.00
1 Sep 2024742.67
1 Aug 2024715.33
1 Jul 2024674.00
1 Jun 2024648.67
1 May 2024650.33
1 Apr 2024629.00
1 Mar 2024617.00
1 Feb 2024620.00
1 Jan 2024654.00
1 Dec 2023691.00
1 Nov 2023716.33
1 Oct 2023726.33
1 Sep 2023702.67
1 Aug 2023675.00
1 Jul 2023645.33
1 Jun 2023617.00
1 May 2023585.33
1 Apr 2023560.67
1 Mar 2023569.00
1 Feb 2023591.67
1 Jan 2023625.33
1 Dec 2022638.67
1 Nov 2022653.00
1 Oct 2022655.67
1 Sep 2022639.67
1 Aug 2022591.00
1 Jul 2022558.67
1 Jun 2022544.00
1 May 2022552.67
1 Apr 2022535.00
1 Mar 2022534.67
1 Feb 2022536.67
1 Jan 2022598.67
1 Dec 2021638.00
1 Nov 2021649.67
1 Oct 2021617.33
1 Sep 2021594.67
1 Aug 2021573.00
1 Jul 2021557.67
1 Jun 2021519.33
1 May 2021524.67
1 Apr 2021522.00
1 Mar 2021573.00
1 Feb 2021567.67
1 Jan 2021565.33
1 Dec 2020535.33
1 Nov 2020544.00
1 Oct 2020550.00
1 Sep 2020527.67
1 Aug 2020501.33
1 Jul 2020483.00
1 Jun 2020489.00
1 May 2020494.33
1 Apr 2020487.33
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Testing

Rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to co-amoxiclav. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 94.02 on 01 April 2020 to 94.17 on 01 January 2021. It fell from 93.87 on 01 February 2021 to 93.38 on 01 November 2021. It fell from 93.82 on 01 December 2021 to 91.03 on 01 September 2022. It fell from 91.23 on 01 October 2022 to 90.59 on 01 July 2023. It rose from 90.0 on 01 August 2023 to 90.28 on 01 May 2024. And finally. It fell from 90.63 on 01 June 2024 to 89.46 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to co-amoxiclav. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% tested
1 Feb 202589.46
1 Jan 202588.99
1 Dec 202489.33
1 Nov 202488.64
1 Oct 202489.10
1 Sep 202489.51
1 Aug 202489.94
1 Jul 202490.35
1 Jun 202490.63
1 May 202490.28
1 Apr 202490.24
1 Mar 202489.29
1 Feb 202489.86
1 Jan 202490.46
1 Dec 202390.45
1 Nov 202391.09
1 Oct 202390.30
1 Sep 202390.70
1 Aug 202390.00
1 Jul 202390.59
1 Jun 202390.34
1 May 202390.56
1 Apr 202389.60
1 Mar 202390.61
1 Feb 202390.92
1 Jan 202391.51
1 Dec 202291.80
1 Nov 202290.82
1 Oct 202291.23
1 Sep 202291.03
1 Aug 202293.07
1 Jul 202293.94
1 Jun 202294.61
1 May 202293.56
1 Apr 202293.86
1 Mar 202293.36
1 Feb 202293.71
1 Jan 202293.44
1 Dec 202193.82
1 Nov 202193.38
1 Oct 202193.34
1 Sep 202193.69
1 Aug 202194.55
1 Jul 202194.25
1 Jun 202193.51
1 May 202193.57
1 Apr 202194.05
1 Mar 202194.40
1 Feb 202193.87
1 Jan 202194.17
1 Dec 202094.19
1 Nov 202094.77
1 Oct 202094.50
1 Sep 202094.61
1 Aug 202094.17
1 Jul 202094.71
1 Jun 202095.14
1 May 202095.37
1 Apr 202094.02
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to co-amoxiclav. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 29.82 on 01 April 2020 to 32.19 on 01 January 2021. It fell from 31.0 on 01 February 2021 to 30.84 on 01 November 2021. It fell from 31.87 on 01 December 2021 to 30.12 on 01 September 2022. It rose from 31.47 on 01 October 2022 to 32.28 on 01 July 2023. It rose from 31.6 on 01 August 2023 to 33.01 on 01 May 2024. And finally. It fell from 33.66 on 01 June 2024 to 32.66 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to co-amoxiclav. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% resistant
1 Feb 202532.66
1 Jan 202533.38
1 Dec 202433.43
1 Nov 202435.38
1 Oct 202434.36
1 Sep 202433.84
1 Aug 202433.08
1 Jul 202433.78
1 Jun 202433.66
1 May 202433.01
1 Apr 202431.64
1 Mar 202431.98
1 Feb 202433.23
1 Jan 202434.91
1 Dec 202336.42
1 Nov 202335.83
1 Oct 202334.05
1 Sep 202332.87
1 Aug 202331.60
1 Jul 202332.28
1 Jun 202332.52
1 May 202332.12
1 Apr 202332.58
1 Mar 202333.27
1 Feb 202333.30
1 Jan 202333.10
1 Dec 202232.15
1 Nov 202232.16
1 Oct 202231.47
1 Sep 202230.12
1 Aug 202229.05
1 Jul 202227.15
1 Jun 202227.76
1 May 202229.13
1 Apr 202230.84
1 Mar 202230.49
1 Feb 202230.31
1 Jan 202231.57
1 Dec 202131.87
1 Nov 202130.84
1 Oct 202128.29
1 Sep 202128.36
1 Aug 202129.32
1 Jul 202130.07
1 Jun 202129.20
1 May 202128.08
1 Apr 202128.80
1 Mar 202129.26
1 Feb 202131.00
1 Jan 202132.19
1 Dec 202033.19
1 Nov 202031.31
1 Oct 202029.27
1 Sep 202026.85
1 Aug 202028.46
1 Jul 202029.12
1 Jun 202030.81
1 May 202029.67
1 Apr 202029.82
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Gentamicin

Testing

Rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to gentamicin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid bar plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaNumberTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 501.33 on 01 April 2020 to 583.33 on 01 January 2021. It rose from 588.33 on 01 February 2021 to 673.67 on 01 November 2021. It rose from 656.33 on 01 December 2021 to 665.67 on 01 September 2022. It fell from 676.33 on 01 October 2022 to 663.0 on 01 July 2023. It fell from 696.67 on 01 August 2023 to 664.33 on 01 May 2024. And finally. It rose from 666.0 on 01 June 2024 to 692.67 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to gentamicin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthNumber tested
1 Feb 2025692.67
1 Jan 2025718.33
1 Dec 2024733.00
1 Nov 2024742.00
1 Oct 2024771.33
1 Sep 2024766.33
1 Aug 2024735.00
1 Jul 2024691.33
1 Jun 2024666.00
1 May 2024664.33
1 Apr 2024634.33
1 Mar 2024630.00
1 Feb 2024639.00
1 Jan 2024675.00
1 Dec 2023714.67
1 Nov 2023730.00
1 Oct 2023751.33
1 Sep 2023718.67
1 Aug 2023696.67
1 Jul 2023663.00
1 Jun 2023641.00
1 May 2023609.00
1 Apr 2023586.33
1 Mar 2023590.00
1 Feb 2023611.00
1 Jan 2023646.33
1 Dec 2022657.67
1 Nov 2022683.00
1 Oct 2022676.33
1 Sep 2022665.67
1 Aug 2022605.00
1 Jul 2022573.33
1 Jun 2022555.67
1 May 2022570.67
1 Apr 2022555.00
1 Mar 2022555.33
1 Feb 2022555.33
1 Jan 2022616.67
1 Dec 2021656.33
1 Nov 2021673.67
1 Oct 2021639.33
1 Sep 2021612.00
1 Aug 2021580.67
1 Jul 2021569.00
1 Jun 2021537.33
1 May 2021545.00
1 Apr 2021542.67
1 Mar 2021594.33
1 Feb 2021588.33
1 Jan 2021583.33
1 Dec 2020552.33
1 Nov 2020559.00
1 Oct 2020566.00
1 Sep 2020541.67
1 Aug 2020518.33
1 Jul 2020499.67
1 Jun 2020505.00
1 May 2020502.33
1 Apr 2020501.33
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Testing

Rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to gentamicin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 96.72 on 01 April 2020 to 97.17 on 01 January 2021. It fell from 97.35 on 01 February 2021 to 96.83 on 01 November 2021. It fell from 96.47 on 01 December 2021 to 94.73 on 01 September 2022. It fell from 94.15 on 01 October 2022 to 93.12 on 01 July 2023. It fell from 92.8 on 01 August 2023 to 92.22 on 01 May 2024. And finally. It fell from 93.15 on 01 June 2024 to 91.17 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to gentamicin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% tested
1 Feb 202591.17
1 Jan 202590.89
1 Dec 202490.94
1 Nov 202491.60
1 Oct 202492.34
1 Sep 202492.40
1 Aug 202492.45
1 Jul 202492.63
1 Jun 202493.15
1 May 202492.22
1 Apr 202490.96
1 Mar 202491.17
1 Feb 202492.61
1 Jan 202493.36
1 Dec 202393.46
1 Nov 202392.88
1 Oct 202393.41
1 Sep 202392.76
1 Aug 202392.80
1 Jul 202393.12
1 Jun 202393.85
1 May 202394.27
1 Apr 202393.76
1 Mar 202393.95
1 Feb 202394.00
1 Jan 202394.58
1 Dec 202294.53
1 Nov 202294.99
1 Oct 202294.15
1 Sep 202294.73
1 Aug 202295.28
1 Jul 202296.46
1 Jun 202296.52
1 May 202296.61
1 Apr 202297.37
1 Mar 202297.03
1 Feb 202297.03
1 Jan 202296.25
1 Dec 202196.47
1 Nov 202196.83
1 Oct 202196.67
1 Sep 202196.53
1 Aug 202195.71
1 Jul 202196.28
1 Jun 202196.76
1 May 202197.32
1 Apr 202197.66
1 Mar 202197.86
1 Feb 202197.35
1 Jan 202197.17
1 Dec 202097.18
1 Nov 202097.39
1 Oct 202097.25
1 Sep 202097.13
1 Aug 202097.37
1 Jul 202097.84
1 Jun 202098.25
1 May 202096.91
1 Apr 202096.72
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to gentamicin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 8.84 on 01 April 2020 to 8.97 on 01 January 2021. It rose from 9.24 on 01 February 2021 to 10.54 on 01 November 2021. It fell from 10.46 on 01 December 2021 to 9.51 on 01 September 2022. It rose from 10.0 on 01 October 2022 to 10.21 on 01 July 2023. It rose from 9.33 on 01 August 2023 to 10.99 on 01 May 2024. And finally. It rose from 11.81 on 01 June 2024 to 12.85 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to gentamicin. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% resistant
1 Feb 202512.85
1 Jan 202511.97
1 Dec 202412.28
1 Nov 202412.71
1 Oct 202413.48
1 Sep 202413.83
1 Aug 202413.61
1 Jul 202412.39
1 Jun 202411.81
1 May 202410.99
1 Apr 202410.61
1 Mar 202410.53
1 Feb 202411.79
1 Jan 202412.00
1 Dec 202312.03
1 Nov 202311.19
1 Oct 202310.78
1 Sep 20239.42
1 Aug 20239.33
1 Jul 202310.21
1 Jun 202311.44
1 May 202310.95
1 Apr 202310.46
1 Mar 202310.28
1 Feb 202310.09
1 Jan 202310.52
1 Dec 202210.49
1 Nov 202210.83
1 Oct 202210.00
1 Sep 20229.51
1 Aug 20229.09
1 Jul 20228.31
1 Jun 20228.88
1 May 20229.11
1 Apr 202210.51
1 Mar 202210.26
1 Feb 202210.32
1 Jan 202210.49
1 Dec 202110.46
1 Nov 202110.54
1 Oct 20219.59
1 Sep 20219.04
1 Aug 20218.38
1 Jul 20218.20
1 Jun 20218.25
1 May 20218.62
1 Apr 20219.34
1 Mar 20219.14
1 Feb 20219.24
1 Jan 20218.97
1 Dec 20209.72
1 Nov 20208.77
1 Oct 20207.89
1 Sep 20206.46
1 Aug 20207.14
1 Jul 20207.34
1 Jun 20207.85
1 May 20207.63
1 Apr 20208.84
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Piperacillin with tazobactam

Testing

Rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to piperacillin with tazobactam. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid bar plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaNumberTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 475.33 on 01 April 2020 to 554.67 on 01 January 2021. It rose from 561.0 on 01 February 2021 to 641.33 on 01 November 2021. It rose from 622.0 on 01 December 2021 to 630.33 on 01 September 2022. It fell from 644.0 on 01 October 2022 to 635.33 on 01 July 2023. It fell from 662.0 on 01 August 2023 to 638.67 on 01 May 2024. And finally. It rose from 636.67 on 01 June 2024 to 693.33 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to piperacillin with tazobactam. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthNumber tested
1 Feb 2025693.33
1 Jan 2025720.00
1 Dec 2024733.00
1 Nov 2024721.33
1 Oct 2024735.67
1 Sep 2024724.33
1 Aug 2024701.67
1 Jul 2024661.67
1 Jun 2024636.67
1 May 2024638.67
1 Apr 2024612.67
1 Mar 2024604.33
1 Feb 2024601.00
1 Jan 2024636.67
1 Dec 2023680.67
1 Nov 2023702.33
1 Oct 2023709.67
1 Sep 2023682.33
1 Aug 2023662.00
1 Jul 2023635.33
1 Jun 2023608.00
1 May 2023574.00
1 Apr 2023558.00
1 Mar 2023563.00
1 Feb 2023587.33
1 Jan 2023616.00
1 Dec 2022627.00
1 Nov 2022648.00
1 Oct 2022644.00
1 Sep 2022630.33
1 Aug 2022577.33
1 Jul 2022545.67
1 Jun 2022527.67
1 May 2022532.67
1 Apr 2022514.33
1 Mar 2022519.67
1 Feb 2022521.33
1 Jan 2022587.67
1 Dec 2021622.00
1 Nov 2021641.33
1 Oct 2021603.33
1 Sep 2021578.67
1 Aug 2021553.00
1 Jul 2021544.00
1 Jun 2021516.33
1 May 2021518.33
1 Apr 2021514.67
1 Mar 2021562.33
1 Feb 2021561.00
1 Jan 2021554.67
1 Dec 2020524.00
1 Nov 2020530.00
1 Oct 2020539.67
1 Sep 2020516.67
1 Aug 2020486.00
1 Jul 2020464.33
1 Jun 2020469.67
1 May 2020477.33
1 Apr 2020475.33
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Testing

Rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to piperacillin with tazobactam. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 91.7 on 01 April 2020 to 92.33 on 01 January 2021. It fell from 92.88 on 01 February 2021 to 92.23 on 01 November 2021. It fell from 91.47 on 01 December 2021 to 89.74 on 01 September 2022. It fell from 89.69 on 01 October 2022 to 89.19 on 01 July 2023. It rose from 88.27 on 01 August 2023 to 88.61 on 01 May 2024. And finally. It rose from 88.95 on 01 June 2024 to 91.3 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to piperacillin with tazobactam. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% tested
1 Feb 202591.30
1 Jan 202591.14
1 Dec 202490.94
1 Nov 202489.01
1 Oct 202488.02
1 Sep 202487.33
1 Aug 202488.18
1 Jul 202488.61
1 Jun 202488.95
1 May 202488.61
1 Apr 202487.80
1 Mar 202487.41
1 Feb 202487.10
1 Jan 202487.97
1 Dec 202389.01
1 Nov 202389.31
1 Oct 202388.18
1 Sep 202388.11
1 Aug 202388.27
1 Jul 202389.19
1 Jun 202389.02
1 May 202388.85
1 Apr 202389.28
1 Mar 202389.65
1 Feb 202390.31
1 Jan 202390.19
1 Dec 202290.22
1 Nov 202290.13
1 Oct 202289.69
1 Sep 202289.74
1 Aug 202290.87
1 Jul 202291.75
1 Jun 202291.65
1 May 202290.17
1 Apr 202290.18
1 Mar 202290.73
1 Feb 202291.08
1 Jan 202291.72
1 Dec 202191.47
1 Nov 202192.23
1 Oct 202191.23
1 Sep 202191.17
1 Aug 202191.25
1 Jul 202192.05
1 Jun 202192.97
1 May 202192.50
1 Apr 202192.61
1 Mar 202192.59
1 Feb 202192.88
1 Jan 202192.33
1 Dec 202092.25
1 Nov 202092.33
1 Oct 202092.61
1 Sep 202092.64
1 Aug 202091.35
1 Jul 202090.98
1 Jun 202091.25
1 May 202092.08
1 Apr 202091.70
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to piperacillin with tazobactam. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 15.01 on 01 April 2020 to 18.27 on 01 January 2021. It rose from 18.18 on 01 February 2021 to 19.59 on 01 November 2021. The date fluctuates between 19.83 on 01 December 2021, ending with the same value on 01 September 2022. It rose from 20.03 on 01 October 2022 to 22.77 on 01 July 2023. It rose from 23.21 on 01 August 2023 to 23.75 on 01 May 2024. And finally. It rose from 23.93 on 01 June 2024 to 24.18 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to piperacillin with tazobactam. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% resistant
1 Feb 202524.18
1 Jan 202523.52
1 Dec 202424.37
1 Nov 202424.95
1 Oct 202424.51
1 Sep 202423.15
1 Aug 202422.76
1 Jul 202423.38
1 Jun 202423.93
1 May 202423.75
1 Apr 202423.39
1 Mar 202423.61
1 Feb 202423.18
1 Jan 202424.76
1 Dec 202325.47
1 Nov 202326.39
1 Oct 202324.66
1 Sep 202324.38
1 Aug 202323.21
1 Jul 202322.77
1 Jun 202322.75
1 May 202322.36
1 Apr 202323.42
1 Mar 202323.56
1 Feb 202323.78
1 Jan 202323.70
1 Dec 202222.06
1 Nov 202221.30
1 Oct 202220.03
1 Sep 202219.83
1 Aug 202219.69
1 Jul 202218.45
1 Jun 202219.14
1 May 202219.96
1 Apr 202220.80
1 Mar 202219.18
1 Feb 202218.54
1 Jan 202219.12
1 Dec 202119.83
1 Nov 202119.59
1 Oct 202117.85
1 Sep 202117.86
1 Aug 202117.54
1 Jul 202119.24
1 Jun 202118.66
1 May 202117.94
1 Apr 202118.01
1 Mar 202117.43
1 Feb 202118.18
1 Jan 202118.27
1 Dec 202019.08
1 Nov 202018.18
1 Oct 202016.12
1 Sep 202014.58
1 Aug 202014.88
1 Jul 202016.51
1 Jun 202017.74
1 May 202016.06
1 Apr 202015.01
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Third-generation cephalosporins

Testing

Rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid bar plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaNumberTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 503.0 on 01 April 2020 to 585.67 on 01 January 2021. It rose from 589.67 on 01 February 2021 to 677.33 on 01 November 2021. It rose from 662.67 on 01 December 2021 to 681.33 on 01 September 2022. It fell from 700.67 on 01 October 2022 to 688.0 on 01 July 2023. It fell from 722.0 on 01 August 2023 to 695.67 on 01 May 2024. And finally. It rose from 690.0 on 01 June 2024 to 729.67 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average number of K. pneumoniae bacteraemia tested for resistance to third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

MonthNumber tested
1 Feb 2025729.67
1 Jan 2025759.67
1 Dec 2024775.00
1 Nov 2024782.67
1 Oct 2024811.00
1 Sep 2024805.67
1 Aug 2024771.67
1 Jul 2024721.67
1 Jun 2024690.00
1 May 2024695.67
1 Apr 2024675.33
1 Mar 2024669.00
1 Feb 2024667.67
1 Jan 2024699.00
1 Dec 2023740.33
1 Nov 2023760.00
1 Oct 2023774.00
1 Sep 2023746.00
1 Aug 2023722.00
1 Jul 2023688.00
1 Jun 2023660.33
1 May 2023626.67
1 Apr 2023608.00
1 Mar 2023609.67
1 Feb 2023633.00
1 Jan 2023667.33
1 Dec 2022682.00
1 Nov 2022705.67
1 Oct 2022700.67
1 Sep 2022681.33
1 Aug 2022616.67
1 Jul 2022576.67
1 Jun 2022562.33
1 May 2022577.00
1 Apr 2022562.33
1 Mar 2022560.67
1 Feb 2022558.00
1 Jan 2022622.00
1 Dec 2021662.67
1 Nov 2021677.33
1 Oct 2021641.00
1 Sep 2021614.33
1 Aug 2021589.00
1 Jul 2021575.67
1 Jun 2021542.00
1 May 2021547.00
1 Apr 2021543.33
1 Mar 2021595.33
1 Feb 2021589.67
1 Jan 2021585.67
1 Dec 2020555.00
1 Nov 2020563.00
1 Oct 2020572.00
1 Sep 2020544.33
1 Aug 2020514.67
1 Jul 2020491.33
1 Jun 2020495.67
1 May 2020502.00
1 Apr 2020503.00
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Testing

Rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentTestedRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 97.1 on 01 April 2020 to 97.5 on 01 January 2021. It fell from 97.52 on 01 February 2021 to 97.41 on 01 November 2021. It fell from 97.35 on 01 December 2021 to 97.01 on 01 September 2022. It fell from 97.49 on 01 October 2022 to 96.63 on 01 July 2023. It rose from 96.27 on 01 August 2023 to 96.53 on 01 May 2024. And finally. It fell from 96.5 on 01 June 2024 to 96.05 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of K. pneumoniae bacteraemia tested for resistance to third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% tested
1 Feb 202596.05
1 Jan 202596.08
1 Dec 202496.15
1 Nov 202496.54
1 Oct 202497.13
1 Sep 202497.10
1 Aug 202496.98
1 Jul 202496.65
1 Jun 202496.50
1 May 202496.53
1 Apr 202496.84
1 Mar 202496.82
1 Feb 202496.67
1 Jan 202496.68
1 Dec 202396.86
1 Nov 202396.69
1 Oct 202396.27
1 Sep 202396.38
1 Aug 202396.27
1 Jul 202396.63
1 Jun 202396.63
1 May 202396.90
1 Apr 202397.28
1 Mar 202396.97
1 Feb 202397.38
1 Jan 202397.66
1 Dec 202298.13
1 Nov 202298.05
1 Oct 202297.49
1 Sep 202297.01
1 Aug 202297.01
1 Jul 202296.97
1 Jun 202297.74
1 May 202297.80
1 Apr 202298.60
1 Mar 202297.90
1 Feb 202297.55
1 Jan 202297.19
1 Dec 202197.35
1 Nov 202197.41
1 Oct 202196.97
1 Sep 202196.85
1 Aug 202197.19
1 Jul 202197.29
1 Jun 202197.66
1 May 202197.68
1 Apr 202197.84
1 Mar 202198.02
1 Feb 202197.52
1 Jan 202197.50
1 Dec 202097.71
1 Nov 202098.08
1 Oct 202098.28
1 Sep 202097.67
1 Aug 202096.62
1 Jul 202096.27
1 Jun 202096.30
1 May 202096.91
1 Apr 202097.10
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About

Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of K. pneumoniae bacteraemia resistant to third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including month of 1 Feb 2025

ChartThere is only 1 plot on this chart. The horizontal X-axis is labelled 'date'. Whilst the vertical Y-axis is labelled 'metric'. This is a dark blue solid line plot. This plot shows data for K-pneumoniae. Specifically the metric 'k-pneumoniae_testing_bacteraemiaPercentResistantRollingMonth' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 01 April 2020 to 01 February 2025. It rose from 15.18 on 01 April 2020 to 15.59 on 01 January 2021. It rose from 15.66 on 01 February 2021 to 18.11 on 01 November 2021. It fell from 17.76 on 01 December 2021 to 16.78 on 01 September 2022. It rose from 17.98 on 01 October 2022 to 18.8 on 01 July 2023. It rose from 17.31 on 01 August 2023 to 18.59 on 01 May 2024. And finally. It fell from 18.99 on 01 June 2024 to 18.96 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Resistance data for rolling monthly average percent of K. pneumoniae bacteraemia resistant to third-generation cephalosporins. Monthly figures are shown as the first day of each month. For example, the figures for January 2022 are shown as at "1 Jan 2022".

Up to and including 1 February 2025

Month% resistant
1 Feb 202518.96
1 Jan 202519.22
1 Dec 202420.60
1 Nov 202421.38
1 Oct 202422.36
1 Sep 202421.56
1 Aug 202420.60
1 Jul 202419.40
1 Jun 202418.99
1 May 202418.59
1 Apr 202417.42
1 Mar 202416.84
1 Feb 202417.42
1 Jan 202418.50
1 Dec 202319.41
1 Nov 202320.13
1 Oct 202319.12
1 Sep 202318.90
1 Aug 202317.31
1 Jul 202318.80
1 Jun 202319.03
1 May 202319.15
1 Apr 202319.02
1 Mar 202318.75
1 Feb 202319.12
1 Jan 202319.48
1 Dec 202219.65
1 Nov 202219.18
1 Oct 202217.98
1 Sep 202216.78
1 Aug 202216.59
1 Jul 202215.78
1 Jun 202216.66
1 May 202216.70
1 Apr 202217.66
1 Mar 202217.42
1 Feb 202216.85
1 Jan 202217.90
1 Dec 202117.76
1 Nov 202118.11
1 Oct 202115.81
1 Sep 202115.52
1 Aug 202115.39
1 Jul 202115.87
1 Jun 202115.87
1 May 202115.66
1 Apr 202116.01
1 Mar 202115.17
1 Feb 202115.66
1 Jan 202115.59
1 Dec 202016.40
1 Nov 202015.39
1 Oct 202014.39
1 Sep 202013.78
1 Aug 202014.51
1 Jul 202015.60
1 Jun 202015.74
1 May 202014.67
1 Apr 202015.18
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About

Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

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