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Entry title:

Antimicrobial resistance in Klebsiella pneumoniae (K. pneumoniae) bacteraemia

Last updated on Thursday, 27 November 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 Aug 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 October 2020 to 01 August 2025. It rose from 0.75 on 01 October 2020 to 1.56 on 01 July 2021. It rose from 1.7 on 01 August 2021 to 2.42 on 01 May 2022. It rose from 1.97 on 01 June 2022 to 2.25 on 01 March 2023. It fell from 2.26 on 01 April 2023 to 1.71 on 01 January 2024. It rose from 2.53 on 01 February 2024 to 2.88 on 01 November 2024. And finally. It rose from 3.12 on 01 December 2024 to 3.2 on 01 August 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 October 2020 to 01 August 2025. It rose from 0.47 on 01 October 2020 to 0.75 on 01 July 2021. It rose from 0.74 on 01 August 2021 to 1.27 on 01 May 2022. It rose from 1.66 on 01 June 2022 to 1.68 on 01 March 2023. It fell from 1.64 on 01 April 2023 to 1.37 on 01 January 2024. It rose from 1.68 on 01 February 2024 to 1.89 on 01 November 2024. And finally. It fell from 1.65 on 01 December 2024 to 1.46 on 01 August 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 October 2020 to 01 August 2025. It rose from 14.48 on 01 October 2020 to 15.18 on 01 July 2021. It rose from 15.23 on 01 August 2021 to 17.69 on 01 May 2022. It rose from 16.78 on 01 June 2022 to 17.89 on 01 March 2023. It rose from 18.14 on 01 April 2023 to 18.2 on 01 January 2024. It rose from 17.41 on 01 February 2024 to 20.29 on 01 November 2024. And finally. It fell from 20.16 on 01 December 2024 to 19.35 on 01 August 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 October 2020 to 01 August 2025. It rose from 29.34 on 01 October 2020 to 30.1 on 01 July 2021. It fell from 29.31 on 01 August 2021 to 29.18 on 01 May 2022. It rose from 27.81 on 01 June 2022 to 33.26 on 01 March 2023. It rose from 32.56 on 01 April 2023 to 34.84 on 01 January 2024. It rose from 33.05 on 01 February 2024 to 35.44 on 01 November 2024. And finally. It fell from 33.58 on 01 December 2024 to 33.26 on 01 August 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 October 2020 to 01 August 2025. It rose from 7.91 on 01 October 2020 to 8.24 on 01 July 2021. It rose from 8.41 on 01 August 2021 to 9.14 on 01 May 2022. It rose from 8.9 on 01 June 2022 to 10.28 on 01 March 2023. It rose from 10.46 on 01 April 2023 to 11.94 on 01 January 2024. It rose from 11.64 on 01 February 2024 to 12.69 on 01 November 2024. And finally. It fell from 12.37 on 01 December 2024 to 12.24 on 01 August 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 October 2020 to 01 August 2025. It rose from 16.18 on 01 October 2020 to 19.28 on 01 July 2021. It rose from 17.57 on 01 August 2021 to 19.89 on 01 May 2022. It rose from 19.01 on 01 June 2022 to 23.58 on 01 March 2023. It rose from 23.42 on 01 April 2023 to 24.73 on 01 January 2024. It rose from 23.09 on 01 February 2024 to 25.05 on 01 November 2024. And finally. It fell from 24.54 on 01 December 2024 to 23.13 on 01 August 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 October 2020 to 01 August 2025. It rose from 14.36 on 01 October 2020 to 15.87 on 01 July 2021. It rose from 15.4 on 01 August 2021 to 16.71 on 01 May 2022. It rose from 16.68 on 01 June 2022 to 18.75 on 01 March 2023. It fell from 19.02 on 01 April 2023 to 18.46 on 01 January 2024. It rose from 17.33 on 01 February 2024 to 21.32 on 01 November 2024. And finally. It fell from 20.64 on 01 December 2024 to 18.52 on 01 August 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 August 2025

MonthAmikacin (Watch)Carbapenems (Reserve)
1 Aug 20253.201.46
1 Jul 20252.991.31
1 Jun 20252.261.12
1 May 20252.171.55
1 Apr 20252.791.80
1 Mar 20252.781.68
1 Feb 20253.091.31
1 Jan 20252.881.26
1 Dec 20243.121.65
1 Nov 20242.881.89
1 Oct 20242.711.84
1 Sep 20242.601.69
1 Aug 20242.641.46
1 Jul 20242.941.69
1 Jun 20242.951.43
1 May 20242.601.42
1 Apr 20242.621.52
1 Mar 20242.151.68
1 Feb 20242.531.68
1 Jan 20241.711.37
1 Dec 20231.901.47
1 Nov 20231.801.57
1 Oct 20231.971.76
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 20223.141.85
1 Oct 20223.011.72
1 Sep 20222.881.76
1 Aug 20222.141.62
1 Jul 20221.671.73
1 Jun 20221.971.66
1 May 20222.421.27
1 Apr 20223.311.01
1 Mar 20223.361.01
1 Feb 20222.961.14
1 Jan 20222.911.72
1 Dec 20212.441.67
1 Nov 20212.641.48
1 Oct 20212.170.99
1 Sep 20212.130.76
1 Aug 20211.700.74
1 Jul 20211.560.75
1 Jun 20211.230.80
1 May 20211.540.97
1 Apr 20211.191.17
1 Mar 20210.760.84
1 Feb 20210.771.13
1 Jan 20211.001.14
1 Dec 20201.331.32
1 Nov 20201.160.83
1 Oct 20200.750.47
MonthCiprofloxacin (Watch)Co-amoxiclav (Watch)
1 Aug 202519.3533.26
1 Jul 202518.5432.25
1 Jun 202518.0532.29
1 May 202516.9531.43
1 Apr 202517.4533.39
1 Mar 202517.4932.76
1 Feb 202518.5432.78
1 Jan 202519.1733.43
1 Dec 202420.1633.58
1 Nov 202420.2935.44
1 Oct 202420.1234.43
1 Sep 202419.3133.76
1 Aug 202418.9432.98
1 Jul 202418.9733.60
1 Jun 202418.5333.45
1 May 202418.6632.87
1 Apr 202417.5831.44
1 Mar 202417.6431.83
1 Feb 202417.4133.05
1 Jan 202418.2034.84
1 Dec 202318.5436.36
1 Nov 202319.3035.84
1 Oct 202318.3734.08
1 Sep 202318.0832.91
1 Aug 202317.1431.60
1 Jul 202318.9532.28
1 Jun 202319.4032.52
1 May 202319.3932.12
1 Apr 202318.1432.56
1 Mar 202317.8933.26
1 Feb 202317.1633.28
1 Jan 202317.9233.10
1 Dec 202217.5132.15
1 Nov 202217.5332.14
1 Oct 202215.9031.45
1 Sep 202215.6630.08
1 Aug 202215.2129.04
1 Jul 202215.8027.14
1 Jun 202216.7827.81
1 May 202217.6929.18
1 Apr 202218.0330.92
1 Mar 202217.5830.54
1 Feb 202217.1230.37
1 Jan 202217.4631.64
1 Dec 202117.5231.88
1 Nov 202117.0530.78
1 Oct 202116.0628.20
1 Sep 202115.3928.34
1 Aug 202115.2329.31
1 Jul 202115.1830.10
1 Jun 202115.2529.10
1 May 202115.0428.04
1 Apr 202114.9228.75
1 Mar 202113.9629.33
1 Feb 202114.4831.06
1 Jan 202113.7332.19
1 Dec 202014.7633.17
1 Nov 202014.0731.29
1 Oct 202014.4829.34
MonthGentamicin (Access)Piperacillin with tazobactam (Watch)
1 Aug 202512.2423.13
1 Jul 202511.3622.66
1 Jun 20259.6123.39
1 May 20259.7122.85
1 Apr 202511.4424.70
1 Mar 202512.4323.91
1 Feb 202512.9024.28
1 Jan 202512.0723.58
1 Dec 202412.3724.54
1 Nov 202412.6925.05
1 Oct 202413.4424.58
1 Sep 202413.8523.14
1 Aug 202413.6422.65
1 Jul 202412.4023.22
1 Jun 202411.7723.75
1 May 202410.9523.72
1 Apr 202410.5523.37
1 Mar 202410.4123.54
1 Feb 202411.6423.09
1 Jan 202411.9424.73
1 Dec 202311.9725.43
1 Nov 202311.1526.36
1 Oct 202310.7224.61
1 Sep 20239.3924.38
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 202310.2823.58
1 Feb 202310.0923.79
1 Jan 202310.5323.71
1 Dec 202210.5022.06
1 Nov 202210.8021.27
1 Oct 20229.9720.00
1 Sep 20229.4819.76
1 Aug 20229.1019.60
1 Jul 20228.3418.32
1 Jun 20228.9019.01
1 May 20229.1419.89
1 Apr 202210.4720.70
1 Mar 202210.2219.13
1 Feb 202210.2818.51
1 Jan 202210.5019.16
1 Dec 202110.4819.87
1 Nov 202110.5619.63
1 Oct 20219.6217.87
1 Sep 20219.0717.90
1 Aug 20218.4117.57
1 Jul 20218.2419.28
1 Jun 20218.2818.69
1 May 20218.6517.99
1 Apr 20219.3018.05
1 Mar 20219.0617.47
1 Feb 20219.1518.17
1 Jan 20218.8418.20
1 Dec 20209.6219.03
1 Nov 20208.6718.19
1 Oct 20207.9116.18
MonthThird-generation cephalosporins (Watch)
1 Aug 202518.52
1 Jul 202518.38
1 Jun 202517.65
1 May 202518.40
1 Apr 202519.14
1 Mar 202518.93
1 Feb 202518.91
1 Jan 202519.28
1 Dec 202420.64
1 Nov 202421.32
1 Oct 202422.28
1 Sep 202421.51
1 Aug 202420.56
1 Jul 202419.32
1 Jun 202418.89
1 May 202418.53
1 Apr 202417.33
1 Mar 202416.71
1 Feb 202417.33
1 Jan 202418.46
1 Dec 202319.35
1 Nov 202320.06
1 Oct 202319.06
1 Sep 202318.88
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 202219.10
1 Oct 202217.90
1 Sep 202216.70
1 Aug 202216.59
1 Jul 202215.80
1 Jun 202216.68
1 May 202216.71
1 Apr 202217.66
1 Mar 202217.42
1 Feb 202216.85
1 Jan 202217.90
1 Dec 202117.76
1 Nov 202118.12
1 Oct 202115.82
1 Sep 202115.54
1 Aug 202115.40
1 Jul 202115.87
1 Jun 202115.88
1 May 202115.67
1 Apr 202116.02
1 Mar 202115.17
1 Feb 202115.66
1 Jan 202115.55
1 Dec 202016.31
1 Nov 202015.30
1 Oct 202014.36
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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 Aug 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 October 2020 to 01 August 2025. It rose from 399.0 on 01 October 2020 to 406.67 on 01 July 2021. It rose from 412.33 on 01 August 2021 to 413.0 on 01 May 2022. It rose from 406.0 on 01 June 2022 to 430.33 on 01 March 2023. It rose from 428.0 on 01 April 2023 to 506.67 on 01 January 2024. It rose from 474.0 on 01 February 2024 to 556.0 on 01 November 2024. And finally. It rose from 545.67 on 01 December 2024 to 561.67 on 01 August 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 August 2025

MonthNumber tested
1 Aug 2025561.67
1 Jul 2025523.33
1 Jun 2025473.00
1 May 2025475.67
1 Apr 2025466.00
1 Mar 2025492.00
1 Feb 2025506.67
1 Jan 2025532.00
1 Dec 2024545.67
1 Nov 2024556.00
1 Oct 2024577.33
1 Sep 2024589.33
1 Aug 2024556.00
1 Jul 2024521.00
1 Jun 2024485.33
1 May 2024500.67
1 Apr 2024483.33
1 Mar 2024480.67
1 Feb 2024474.00
1 Jan 2024506.67
1 Dec 2023544.67
1 Nov 2023556.33
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 2022510.33
1 Oct 2022498.67
1 Sep 2022485.33
1 Aug 2022435.33
1 Jul 2022420.00
1 Jun 2022406.00
1 May 2022413.00
1 Apr 2022403.33
1 Mar 2022406.33
1 Feb 2022405.00
1 Jan 2022446.67
1 Dec 2021479.00
1 Nov 2021493.33
1 Oct 2021460.33
1 Sep 2021437.33
1 Aug 2021412.33
1 Jul 2021406.67
1 Jun 2021380.67
1 May 2021390.33
1 Apr 2021393.33
1 Mar 2021439.00
1 Feb 2021430.33
1 Jan 2021432.00
1 Dec 2020399.67
1 Nov 2020403.67
1 Oct 2020399.00
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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 Aug 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 October 2020 to 01 August 2025. It rose from 68.67 on 01 October 2020 to 68.7 on 01 July 2021. It rose from 67.99 on 01 August 2021 to 70.0 on 01 May 2022. It fell from 70.61 on 01 June 2022 to 68.47 on 01 March 2023. It rose from 68.48 on 01 April 2023 to 69.32 on 01 January 2024. It rose from 67.81 on 01 February 2024 to 68.14 on 01 November 2024. And finally. It rose from 67.2 on 01 December 2024 to 68.25 on 01 August 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 August 2025

Month% tested
1 Aug 202568.25
1 Jul 202566.29
1 Jun 202564.18
1 May 202564.45
1 Apr 202565.36
1 Mar 202566.49
1 Feb 202566.23
1 Jan 202567.09
1 Dec 202467.20
1 Nov 202468.14
1 Oct 202468.53
1 Sep 202470.54
1 Aug 202469.50
1 Jul 202469.37
1 Jun 202467.27
1 May 202468.87
1 Apr 202468.61
1 Mar 202468.67
1 Feb 202467.81
1 Jan 202469.32
1 Dec 202370.56
1 Nov 202370.20
1 Oct 202368.94
1 Sep 202368.69
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 202271.03
1 Oct 202269.46
1 Sep 202269.19
1 Aug 202268.50
1 Jul 202270.71
1 Jun 202270.61
1 May 202270.00
1 Apr 202270.70
1 Mar 202270.98
1 Feb 202270.80
1 Jan 202269.69
1 Dec 202170.44
1 Nov 202170.94
1 Oct 202169.59
1 Sep 202168.93
1 Aug 202167.99
1 Jul 202168.70
1 Jun 202168.47
1 May 202169.64
1 Apr 202170.94
1 Mar 202172.32
1 Feb 202171.19
1 Jan 202172.00
1 Dec 202070.25
1 Nov 202070.21
1 Oct 202068.67
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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.

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 Aug 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 October 2020 to 01 August 2025. It rose from 0.75 on 01 October 2020 to 1.56 on 01 July 2021. It rose from 1.7 on 01 August 2021 to 2.42 on 01 May 2022. It rose from 1.97 on 01 June 2022 to 2.25 on 01 March 2023. It fell from 2.26 on 01 April 2023 to 1.71 on 01 January 2024. It rose from 2.53 on 01 February 2024 to 2.88 on 01 November 2024. And finally. It rose from 3.12 on 01 December 2024 to 3.2 on 01 August 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 August 2025

Month% resistant
1 Aug 20253.20
1 Jul 20252.99
1 Jun 20252.26
1 May 20252.17
1 Apr 20252.79
1 Mar 20252.78
1 Feb 20253.09
1 Jan 20252.88
1 Dec 20243.12
1 Nov 20242.88
1 Oct 20242.71
1 Sep 20242.60
1 Aug 20242.64
1 Jul 20242.94
1 Jun 20242.95
1 May 20242.60
1 Apr 20242.62
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 20223.14
1 Oct 20223.01
1 Sep 20222.88
1 Aug 20222.14
1 Jul 20221.67
1 Jun 20221.97
1 May 20222.42
1 Apr 20223.31
1 Mar 20223.36
1 Feb 20222.96
1 Jan 20222.91
1 Dec 20212.44
1 Nov 20212.64
1 Oct 20212.17
1 Sep 20212.13
1 Aug 20211.70
1 Jul 20211.56
1 Jun 20211.23
1 May 20211.54
1 Apr 20211.19
1 Mar 20210.76
1 Feb 20210.77
1 Jan 20211.00
1 Dec 20201.33
1 Nov 20201.16
1 Oct 20200.75
Download

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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 Aug 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 October 2020 to 01 August 2025. It rose from 573.0 on 01 October 2020 to 575.67 on 01 July 2021. It fell from 585.33 on 01 August 2021 to 577.0 on 01 May 2022. It rose from 563.33 on 01 June 2022 to 614.33 on 01 March 2023. It rose from 611.0 on 01 April 2023 to 706.33 on 01 January 2024. It rose from 673.67 on 01 February 2024 to 792.0 on 01 November 2024. And finally. It rose from 786.0 on 01 December 2024 to 799.0 on 01 August 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 August 2025

MonthNumber tested
1 Aug 2025799.00
1 Jul 2025765.67
1 Jun 2025712.33
1 May 2025711.33
1 Apr 2025684.33
1 Mar 2025714.00
1 Feb 2025738.67
1 Jan 2025769.67
1 Dec 2024786.00
1 Nov 2024792.00
1 Oct 2024816.00
1 Sep 2024807.33
1 Aug 2024773.67
1 Jul 2024728.33
1 Jun 2024699.33
1 May 2024703.33
1 Apr 2024679.00
1 Mar 2024672.67
1 Feb 2024673.67
1 Jan 2024706.33
1 Dec 2023746.67
1 Nov 2023762.67
1 Oct 2023774.67
1 Sep 2023744.33
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 2022703.67
1 Oct 2022699.67
1 Sep 2022680.67
1 Aug 2022617.33
1 Jul 2022578.67
1 Jun 2022563.33
1 May 2022577.00
1 Apr 2022560.67
1 Mar 2022559.33
1 Feb 2022557.33
1 Jan 2022620.00
1 Dec 2021660.33
1 Nov 2021676.00
1 Oct 2021640.00
1 Sep 2021611.67
1 Aug 2021585.33
1 Jul 2021575.67
1 Jun 2021543.67
1 May 2021547.67
1 Apr 2021543.00
1 Mar 2021595.00
1 Feb 2021591.33
1 Jan 2021586.33
1 Dec 2020555.33
1 Nov 2020563.33
1 Oct 2020573.00
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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 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 Aug 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 October 2020 to 01 August 2025. It fell from 98.62 on 01 October 2020 to 97.29 on 01 July 2021. It rose from 96.53 on 01 August 2021 to 97.8 on 01 May 2022. It fell from 97.91 on 01 June 2022 to 97.77 on 01 March 2023. It fell from 97.76 on 01 April 2023 to 96.71 on 01 January 2024. It rose from 96.28 on 01 February 2024 to 97.06 on 01 November 2024. And finally. It rose from 96.92 on 01 December 2024 to 97.2 on 01 August 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 August 2025

Month% tested
1 Aug 202597.20
1 Jul 202596.96
1 Jun 202596.61
1 May 202596.47
1 Apr 202595.93
1 Mar 202596.49
1 Feb 202596.60
1 Jan 202596.97
1 Dec 202496.92
1 Nov 202497.06
1 Oct 202496.91
1 Sep 202496.65
1 Aug 202496.62
1 Jul 202496.94
1 Jun 202496.95
1 May 202496.83
1 Apr 202496.45
1 Mar 202496.14
1 Feb 202496.28
1 Jan 202496.71
1 Dec 202396.76
1 Nov 202396.21
1 Oct 202395.79
1 Sep 202395.88
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 202297.00
1 Aug 202297.17
1 Jul 202297.31
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 202197.06
1 Nov 202197.27
1 Oct 202196.82
1 Sep 202196.37
1 Aug 202196.53
1 Jul 202197.29
1 Jun 202197.84
1 May 202197.68
1 Apr 202198.01
1 Mar 202198.02
1 Feb 202197.85
1 Jan 202197.67
1 Dec 202097.71
1 Nov 202098.08
1 Oct 202098.62
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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 Aug 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 October 2020 to 01 August 2025. It rose from 0.47 on 01 October 2020 to 0.75 on 01 July 2021. It rose from 0.74 on 01 August 2021 to 1.27 on 01 May 2022. It rose from 1.66 on 01 June 2022 to 1.68 on 01 March 2023. It fell from 1.64 on 01 April 2023 to 1.37 on 01 January 2024. It rose from 1.68 on 01 February 2024 to 1.89 on 01 November 2024. And finally. It fell from 1.65 on 01 December 2024 to 1.46 on 01 August 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 August 2025

Month% resistant
1 Aug 20251.46
1 Jul 20251.31
1 Jun 20251.12
1 May 20251.55
1 Apr 20251.80
1 Mar 20251.68
1 Feb 20251.31
1 Jan 20251.26
1 Dec 20241.65
1 Nov 20241.89
1 Oct 20241.84
1 Sep 20241.69
1 Aug 20241.46
1 Jul 20241.69
1 Jun 20241.43
1 May 20241.42
1 Apr 20241.52
1 Mar 20241.68
1 Feb 20241.68
1 Jan 20241.37
1 Dec 20231.47
1 Nov 20231.57
1 Oct 20231.76
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 20221.85
1 Oct 20221.72
1 Sep 20221.76
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 20211.67
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 20211.17
1 Mar 20210.84
1 Feb 20211.13
1 Jan 20211.14
1 Dec 20201.32
1 Nov 20200.83
1 Oct 20200.47
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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 Aug 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 October 2020 to 01 August 2025. It rose from 559.33 on 01 October 2020 to 560.0 on 01 July 2021. It fell from 573.33 on 01 August 2021 to 563.33 on 01 May 2022. It rose from 548.33 on 01 June 2022 to 585.0 on 01 March 2023. It rose from 584.33 on 01 April 2023 to 664.67 on 01 January 2024. It rose from 639.33 on 01 February 2024 to 731.0 on 01 November 2024. And finally. It rose from 727.33 on 01 December 2024 to 742.33 on 01 August 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 August 2025

MonthNumber tested
1 Aug 2025742.33
1 Jul 2025712.00
1 Jun 2025657.33
1 May 2025658.67
1 Apr 2025636.00
1 Mar 2025665.00
1 Feb 2025685.00
1 Jan 2025707.67
1 Dec 2024727.33
1 Nov 2024731.00
1 Oct 2024763.67
1 Sep 2024757.67
1 Aug 2024728.67
1 Jul 2024681.67
1 Jun 2024656.67
1 May 2024661.00
1 Apr 2024646.67
1 Mar 2024638.67
1 Feb 2024639.33
1 Jan 2024664.67
1 Dec 2023708.33
1 Nov 2023732.33
1 Oct 2023745.67
1 Sep 2023715.33
1 Aug 2023688.33
1 Jul 2023654.33
1 Jun 2023632.33
1 May 2023600.00
1 Apr 2023584.33
1 Mar 2023585.00
1 Feb 2023606.00
1 Jan 2023638.00
1 Dec 2022651.00
1 Nov 2022677.00
1 Oct 2022673.00
1 Sep 2022662.00
1 Aug 2022598.33
1 Jul 2022567.33
1 Jun 2022548.33
1 May 2022563.33
1 Apr 2022545.33
1 Mar 2022546.00
1 Feb 2022543.33
1 Jan 2022599.33
1 Dec 2021637.33
1 Nov 2021655.00
1 Oct 2021627.00
1 Sep 2021602.00
1 Aug 2021573.33
1 Jul 2021560.00
1 Jun 2021526.67
1 May 2021536.33
1 Apr 2021534.00
1 Mar 2021585.00
1 Feb 2021577.67
1 Jan 2021573.00
1 Dec 2020542.00
1 Nov 2020552.00
1 Oct 2020559.33
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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 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 Aug 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 October 2020 to 01 August 2025. It fell from 96.21 on 01 October 2020 to 94.75 on 01 July 2021. It rose from 94.55 on 01 August 2021 to 95.42 on 01 May 2022. It fell from 95.3 on 01 June 2022 to 93.15 on 01 March 2023. It fell from 93.44 on 01 April 2023 to 90.96 on 01 January 2024. It fell from 91.42 on 01 February 2024 to 89.58 on 01 November 2024. And finally. It rose from 89.64 on 01 December 2024 to 90.27 on 01 August 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 August 2025

Month% tested
1 Aug 202590.27
1 Jul 202590.24
1 Jun 202589.15
1 May 202589.28
1 Apr 202589.20
1 Mar 202589.86
1 Feb 202589.66
1 Jan 202589.16
1 Dec 202489.64
1 Nov 202489.58
1 Oct 202490.62
1 Sep 202490.66
1 Aug 202491.00
1 Jul 202490.68
1 Jun 202490.98
1 May 202491.05
1 Apr 202491.76
1 Mar 202491.27
1 Feb 202491.42
1 Jan 202490.96
1 Dec 202391.83
1 Nov 202392.42
1 Oct 202392.20
1 Sep 202392.14
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 202294.29
1 Oct 202293.86
1 Sep 202294.44
1 Aug 202294.17
1 Jul 202295.45
1 Jun 202295.30
1 May 202295.42
1 Apr 202295.61
1 Mar 202295.45
1 Feb 202294.93
1 Jan 202293.59
1 Dec 202193.68
1 Nov 202194.24
1 Oct 202194.86
1 Sep 202194.95
1 Aug 202194.55
1 Jul 202194.75
1 Jun 202194.77
1 May 202195.71
1 Apr 202196.39
1 Mar 202196.38
1 Feb 202195.53
1 Jan 202195.50
1 Dec 202095.42
1 Nov 202096.17
1 Oct 202096.21
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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 Aug 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 October 2020 to 01 August 2025. It rose from 14.48 on 01 October 2020 to 15.18 on 01 July 2021. It rose from 15.23 on 01 August 2021 to 17.69 on 01 May 2022. It rose from 16.78 on 01 June 2022 to 17.89 on 01 March 2023. It rose from 18.14 on 01 April 2023 to 18.2 on 01 January 2024. It rose from 17.41 on 01 February 2024 to 20.29 on 01 November 2024. And finally. It fell from 20.16 on 01 December 2024 to 19.35 on 01 August 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 August 2025

Month% resistant
1 Aug 202519.35
1 Jul 202518.54
1 Jun 202518.05
1 May 202516.95
1 Apr 202517.45
1 Mar 202517.49
1 Feb 202518.54
1 Jan 202519.17
1 Dec 202420.16
1 Nov 202420.29
1 Oct 202420.12
1 Sep 202419.31
1 Aug 202418.94
1 Jul 202418.97
1 Jun 202418.53
1 May 202418.66
1 Apr 202417.58
1 Mar 202417.64
1 Feb 202417.41
1 Jan 202418.20
1 Dec 202318.54
1 Nov 202319.30
1 Oct 202318.37
1 Sep 202318.08
1 Aug 202317.14
1 Jul 202318.95
1 Jun 202319.40
1 May 202319.39
1 Apr 202318.14
1 Mar 202317.89
1 Feb 202317.16
1 Jan 202317.92
1 Dec 202217.51
1 Nov 202217.53
1 Oct 202215.90
1 Sep 202215.66
1 Aug 202215.21
1 Jul 202215.80
1 Jun 202216.78
1 May 202217.69
1 Apr 202218.03
1 Mar 202217.58
1 Feb 202217.12
1 Jan 202217.46
1 Dec 202117.52
1 Nov 202117.05
1 Oct 202116.06
1 Sep 202115.39
1 Aug 202115.23
1 Jul 202115.18
1 Jun 202115.25
1 May 202115.04
1 Apr 202114.92
1 Mar 202113.96
1 Feb 202114.48
1 Jan 202113.73
1 Dec 202014.76
1 Nov 202014.07
1 Oct 202014.48
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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 Aug 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 October 2020 to 01 August 2025. It rose from 548.67 on 01 October 2020 to 556.0 on 01 July 2021. It fell from 572.0 on 01 August 2021 to 551.67 on 01 May 2022. It rose from 543.0 on 01 June 2022 to 568.33 on 01 March 2023. It rose from 560.0 on 01 April 2023 to 657.33 on 01 January 2024. It rose from 625.33 on 01 February 2024 to 723.33 on 01 November 2024. And finally. It rose from 724.67 on 01 December 2024 to 732.67 on 01 August 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 August 2025

MonthNumber tested
1 Aug 2025732.67
1 Jul 2025700.67
1 Jun 2025659.67
1 May 2025658.67
1 Apr 2025642.00
1 Mar 2025661.33
1 Feb 2025684.33
1 Jan 2025705.00
1 Dec 2024724.67
1 Nov 2024723.33
1 Oct 2024750.33
1 Sep 2024747.33
1 Aug 2024718.67
1 Jul 2024676.67
1 Jun 2024651.67
1 May 2024654.00
1 Apr 2024634.00
1 Mar 2024622.00
1 Feb 2024625.33
1 Jan 2024657.33
1 Dec 2023694.00
1 Nov 2023719.00
1 Oct 2023728.67
1 Sep 2023704.00
1 Aug 2023675.00
1 Jul 2023645.33
1 Jun 2023617.00
1 May 2023585.33
1 Apr 2023560.00
1 Mar 2023568.33
1 Feb 2023591.00
1 Jan 2023625.33
1 Dec 2022638.67
1 Nov 2022652.33
1 Oct 2022655.00
1 Sep 2022638.33
1 Aug 2022590.00
1 Jul 2022557.67
1 Jun 2022543.00
1 May 2022551.67
1 Apr 2022533.67
1 Mar 2022533.67
1 Feb 2022535.67
1 Jan 2022597.33
1 Dec 2021636.67
1 Nov 2021648.67
1 Oct 2021617.00
1 Sep 2021594.00
1 Aug 2021572.00
1 Jul 2021556.00
1 Jun 2021517.67
1 May 2021523.00
1 Apr 2021520.67
1 Mar 2021571.67
1 Feb 2021566.67
1 Jan 2021564.33
1 Dec 2020534.67
1 Nov 2020543.33
1 Oct 2020548.67
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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 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 Aug 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 October 2020 to 01 August 2025. It fell from 94.32 on 01 October 2020 to 94.08 on 01 July 2021. It fell from 94.39 on 01 August 2021 to 93.39 on 01 May 2022. It fell from 94.43 on 01 June 2022 to 90.45 on 01 March 2023. It rose from 89.6 on 01 April 2023 to 90.0 on 01 January 2024. It fell from 89.41 on 01 February 2024 to 88.6 on 01 November 2024. And finally. It fell from 89.27 on 01 December 2024 to 89.05 on 01 August 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 August 2025

Month% tested
1 Aug 202589.05
1 Jul 202588.72
1 Jun 202589.42
1 May 202589.28
1 Apr 202590.04
1 Mar 202589.32
1 Feb 202589.53
1 Jan 202588.90
1 Dec 202489.27
1 Nov 202488.60
1 Oct 202489.07
1 Sep 202489.46
1 Aug 202489.75
1 Jul 202490.01
1 Jun 202490.29
1 May 202490.08
1 Apr 202490.06
1 Mar 202488.98
1 Feb 202489.41
1 Jan 202490.00
1 Dec 202390.01
1 Nov 202390.78
1 Oct 202390.10
1 Sep 202390.72
1 Aug 202390.00
1 Jul 202390.59
1 Jun 202390.34
1 May 202390.56
1 Apr 202389.60
1 Mar 202390.45
1 Feb 202390.92
1 Jan 202391.51
1 Dec 202291.80
1 Nov 202290.81
1 Oct 202291.35
1 Sep 202291.01
1 Aug 202292.91
1 Jul 202293.77
1 Jun 202294.43
1 May 202293.39
1 Apr 202293.51
1 Mar 202293.18
1 Feb 202293.53
1 Jan 202293.28
1 Dec 202193.53
1 Nov 202193.24
1 Oct 202193.34
1 Sep 202193.69
1 Aug 202194.39
1 Jul 202194.08
1 Jun 202193.15
1 May 202193.39
1 Apr 202193.86
1 Mar 202194.07
1 Feb 202193.71
1 Jan 202194.00
1 Dec 202094.01
1 Nov 202094.60
1 Oct 202094.32
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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 Aug 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 October 2020 to 01 August 2025. It rose from 29.34 on 01 October 2020 to 30.1 on 01 July 2021. It fell from 29.31 on 01 August 2021 to 29.18 on 01 May 2022. It rose from 27.81 on 01 June 2022 to 33.26 on 01 March 2023. It rose from 32.56 on 01 April 2023 to 34.84 on 01 January 2024. It rose from 33.05 on 01 February 2024 to 35.44 on 01 November 2024. And finally. It fell from 33.58 on 01 December 2024 to 33.26 on 01 August 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 August 2025

Month% resistant
1 Aug 202533.26
1 Jul 202532.25
1 Jun 202532.29
1 May 202531.43
1 Apr 202533.39
1 Mar 202532.76
1 Feb 202532.78
1 Jan 202533.43
1 Dec 202433.58
1 Nov 202435.44
1 Oct 202434.43
1 Sep 202433.76
1 Aug 202432.98
1 Jul 202433.60
1 Jun 202433.45
1 May 202432.87
1 Apr 202431.44
1 Mar 202431.83
1 Feb 202433.05
1 Jan 202434.84
1 Dec 202336.36
1 Nov 202335.84
1 Oct 202334.08
1 Sep 202332.91
1 Aug 202331.60
1 Jul 202332.28
1 Jun 202332.52
1 May 202332.12
1 Apr 202332.56
1 Mar 202333.26
1 Feb 202333.28
1 Jan 202333.10
1 Dec 202232.15
1 Nov 202232.14
1 Oct 202231.45
1 Sep 202230.08
1 Aug 202229.04
1 Jul 202227.14
1 Jun 202227.81
1 May 202229.18
1 Apr 202230.92
1 Mar 202230.54
1 Feb 202230.37
1 Jan 202231.64
1 Dec 202131.88
1 Nov 202130.78
1 Oct 202128.20
1 Sep 202128.34
1 Aug 202129.31
1 Jul 202130.10
1 Jun 202129.10
1 May 202128.04
1 Apr 202128.75
1 Mar 202129.33
1 Feb 202131.06
1 Jan 202132.19
1 Dec 202033.17
1 Nov 202031.29
1 Oct 202029.34
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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.

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 Aug 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 October 2020 to 01 August 2025. It rose from 565.0 on 01 October 2020 to 566.67 on 01 July 2021. It fell from 578.33 on 01 August 2021 to 568.67 on 01 May 2022. It rose from 554.0 on 01 June 2022 to 590.0 on 01 March 2023. It rose from 586.33 on 01 April 2023 to 681.33 on 01 January 2024. It rose from 647.33 on 01 February 2024 to 748.33 on 01 November 2024. And finally. It rose from 738.33 on 01 December 2024 to 751.67 on 01 August 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 August 2025

MonthNumber tested
1 Aug 2025751.67
1 Jul 2025713.00
1 Jun 2025662.33
1 May 2025665.67
1 Apr 2025649.67
1 Mar 2025675.67
1 Feb 2025697.67
1 Jan 2025720.67
1 Dec 2024738.33
1 Nov 2024748.33
1 Oct 2024779.00
1 Sep 2024772.67
1 Aug 2024740.67
1 Jul 2024696.33
1 Jun 2024671.33
1 May 2024669.67
1 Apr 2024641.33
1 Mar 2024637.33
1 Feb 2024647.33
1 Jan 2024681.33
1 Dec 2023721.00
1 Nov 2023735.33
1 Oct 2023755.67
1 Sep 2023720.33
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 2023646.00
1 Dec 2022657.33
1 Nov 2022682.00
1 Oct 2022675.67
1 Sep 2022664.67
1 Aug 2022604.67
1 Jul 2022571.67
1 Jun 2022554.00
1 May 2022568.67
1 Apr 2022554.00
1 Mar 2022554.33
1 Feb 2022554.67
1 Jan 2022616.00
1 Dec 2021655.33
1 Nov 2021672.67
1 Oct 2021637.67
1 Sep 2021610.00
1 Aug 2021578.33
1 Jul 2021566.67
1 Jun 2021535.33
1 May 2021543.33
1 Apr 2021541.33
1 Mar 2021592.33
1 Feb 2021586.33
1 Jan 2021581.00
1 Dec 2020550.67
1 Nov 2020557.33
1 Oct 2020565.00
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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 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 Aug 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 October 2020 to 01 August 2025. It fell from 97.25 on 01 October 2020 to 95.77 on 01 July 2021. It rose from 95.38 on 01 August 2021 to 96.27 on 01 May 2022. It fell from 96.35 on 01 June 2022 to 93.95 on 01 March 2023. It fell from 93.76 on 01 April 2023 to 93.29 on 01 January 2024. It fell from 92.56 on 01 February 2024 to 91.67 on 01 November 2024. And finally. It rose from 91.0 on 01 December 2024 to 91.36 on 01 August 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 August 2025

Month% tested
1 Aug 202591.36
1 Jul 202590.37
1 Jun 202589.82
1 May 202590.23
1 Apr 202591.02
1 Mar 202591.22
1 Feb 202591.23
1 Jan 202590.79
1 Dec 202491.00
1 Nov 202491.67
1 Oct 202492.52
1 Sep 202492.46
1 Aug 202492.50
1 Jul 202492.68
1 Jun 202493.07
1 May 202492.15
1 Apr 202491.05
1 Mar 202491.13
1 Feb 202492.56
1 Jan 202493.29
1 Dec 202393.51
1 Nov 202392.80
1 Oct 202393.44
1 Sep 202392.78
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 202294.14
1 Sep 202294.72
1 Aug 202295.12
1 Jul 202296.13
1 Jun 202296.35
1 May 202296.27
1 Apr 202297.19
1 Mar 202296.85
1 Feb 202296.85
1 Jan 202296.25
1 Dec 202196.32
1 Nov 202196.69
1 Oct 202196.37
1 Sep 202196.21
1 Aug 202195.38
1 Jul 202195.77
1 Jun 202196.40
1 May 202196.96
1 Apr 202197.65
1 Mar 202197.53
1 Feb 202197.02
1 Jan 202196.83
1 Dec 202096.83
1 Nov 202097.04
1 Oct 202097.25
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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 Aug 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 October 2020 to 01 August 2025. It rose from 7.91 on 01 October 2020 to 8.24 on 01 July 2021. It rose from 8.41 on 01 August 2021 to 9.14 on 01 May 2022. It rose from 8.9 on 01 June 2022 to 10.28 on 01 March 2023. It rose from 10.46 on 01 April 2023 to 11.94 on 01 January 2024. It rose from 11.64 on 01 February 2024 to 12.69 on 01 November 2024. And finally. It fell from 12.37 on 01 December 2024 to 12.24 on 01 August 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 August 2025

Month% resistant
1 Aug 202512.24
1 Jul 202511.36
1 Jun 20259.61
1 May 20259.71
1 Apr 202511.44
1 Mar 202512.43
1 Feb 202512.90
1 Jan 202512.07
1 Dec 202412.37
1 Nov 202412.69
1 Oct 202413.44
1 Sep 202413.85
1 Aug 202413.64
1 Jul 202412.40
1 Jun 202411.77
1 May 202410.95
1 Apr 202410.55
1 Mar 202410.41
1 Feb 202411.64
1 Jan 202411.94
1 Dec 202311.97
1 Nov 202311.15
1 Oct 202310.72
1 Sep 20239.39
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 202310.53
1 Dec 202210.50
1 Nov 202210.80
1 Oct 20229.97
1 Sep 20229.48
1 Aug 20229.10
1 Jul 20228.34
1 Jun 20228.90
1 May 20229.14
1 Apr 202210.47
1 Mar 202210.22
1 Feb 202210.28
1 Jan 202210.50
1 Dec 202110.48
1 Nov 202110.56
1 Oct 20219.62
1 Sep 20219.07
1 Aug 20218.41
1 Jul 20218.24
1 Jun 20218.28
1 May 20218.65
1 Apr 20219.30
1 Mar 20219.06
1 Feb 20219.15
1 Jan 20218.84
1 Dec 20209.62
1 Nov 20208.67
1 Oct 20207.91
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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 Aug 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 October 2020 to 01 August 2025. It rose from 537.67 on 01 October 2020 to 543.0 on 01 July 2021. It fell from 552.0 on 01 August 2021 to 531.33 on 01 May 2022. It rose from 526.0 on 01 June 2022 to 562.67 on 01 March 2023. It rose from 558.0 on 01 April 2023 to 640.33 on 01 January 2024. It rose from 606.33 on 01 February 2024 to 726.67 on 01 November 2024. And finally. It rose from 737.67 on 01 December 2024 to 748.0 on 01 August 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 August 2025

MonthNumber tested
1 Aug 2025748.00
1 Jul 2025712.00
1 Jun 2025667.00
1 May 2025659.33
1 Apr 2025645.00
1 Mar 2025667.67
1 Feb 2025698.67
1 Jan 2025722.33
1 Dec 2024737.67
1 Nov 2024726.67
1 Oct 2024741.67
1 Sep 2024729.00
1 Aug 2024705.00
1 Jul 2024664.67
1 Jun 2024640.00
1 May 2024642.33
1 Apr 2024617.67
1 Mar 2024609.00
1 Feb 2024606.33
1 Jan 2024640.33
1 Dec 2023684.33
1 Nov 2023705.67
1 Oct 2023712.33
1 Sep 2023683.67
1 Aug 2023662.00
1 Jul 2023635.33
1 Jun 2023608.00
1 May 2023574.00
1 Apr 2023558.00
1 Mar 2023562.67
1 Feb 2023587.00
1 Jan 2023615.67
1 Dec 2022627.00
1 Nov 2022647.33
1 Oct 2022643.33
1 Sep 2022629.33
1 Aug 2022576.67
1 Jul 2022544.00
1 Jun 2022526.00
1 May 2022531.33
1 Apr 2022513.67
1 Mar 2022519.33
1 Feb 2022520.33
1 Jan 2022586.33
1 Dec 2021620.67
1 Nov 2021640.33
1 Oct 2021602.67
1 Sep 2021577.33
1 Aug 2021552.00
1 Jul 2021543.00
1 Jun 2021515.33
1 May 2021517.00
1 Apr 2021513.33
1 Mar 2021561.00
1 Feb 2021559.67
1 Jan 2021553.00
1 Dec 2020522.00
1 Nov 2020527.67
1 Oct 2020537.67
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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 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 Aug 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 October 2020 to 01 August 2025. It fell from 92.43 on 01 October 2020 to 91.88 on 01 July 2021. It fell from 91.09 on 01 August 2021 to 90.0 on 01 May 2022. It fell from 91.48 on 01 June 2022 to 89.49 on 01 March 2023. It fell from 89.28 on 01 April 2023 to 87.67 on 01 January 2024. It rose from 86.7 on 01 February 2024 to 88.97 on 01 November 2024. And finally. It rose from 90.88 on 01 December 2024 to 91.0 on 01 August 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 August 2025

Month% tested
1 Aug 202591.00
1 Jul 202590.24
1 Jun 202590.50
1 May 202589.42
1 Apr 202590.46
1 Mar 202590.14
1 Feb 202591.36
1 Jan 202591.05
1 Dec 202490.88
1 Nov 202488.97
1 Oct 202488.00
1 Sep 202487.31
1 Aug 202488.12
1 Jul 202488.42
1 Jun 202488.77
1 May 202488.43
1 Apr 202487.64
1 Mar 202487.12
1 Feb 202486.70
1 Jan 202487.67
1 Dec 202388.72
1 Nov 202389.02
1 Oct 202388.12
1 Sep 202388.02
1 Aug 202388.27
1 Jul 202389.19
1 Jun 202389.02
1 May 202388.85
1 Apr 202389.28
1 Mar 202389.49
1 Feb 202390.31
1 Jan 202390.04
1 Dec 202290.22
1 Nov 202290.11
1 Oct 202289.68
1 Sep 202289.73
1 Aug 202290.71
1 Jul 202291.58
1 Jun 202291.48
1 May 202290.00
1 Apr 202290.00
1 Mar 202290.73
1 Feb 202290.91
1 Jan 202291.56
1 Dec 202191.18
1 Nov 202192.09
1 Oct 202191.07
1 Sep 202191.01
1 Aug 202191.09
1 Jul 202191.88
1 Jun 202192.79
1 May 202192.32
1 Apr 202192.60
1 Mar 202192.42
1 Feb 202192.55
1 Jan 202192.17
1 Dec 202091.90
1 Nov 202091.81
1 Oct 202092.43
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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 Aug 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 October 2020 to 01 August 2025. It rose from 16.18 on 01 October 2020 to 19.28 on 01 July 2021. It rose from 17.57 on 01 August 2021 to 19.89 on 01 May 2022. It rose from 19.01 on 01 June 2022 to 23.58 on 01 March 2023. It rose from 23.42 on 01 April 2023 to 24.73 on 01 January 2024. It rose from 23.09 on 01 February 2024 to 25.05 on 01 November 2024. And finally. It fell from 24.54 on 01 December 2024 to 23.13 on 01 August 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 August 2025

Month% resistant
1 Aug 202523.13
1 Jul 202522.66
1 Jun 202523.39
1 May 202522.85
1 Apr 202524.70
1 Mar 202523.91
1 Feb 202524.28
1 Jan 202523.58
1 Dec 202424.54
1 Nov 202425.05
1 Oct 202424.58
1 Sep 202423.14
1 Aug 202422.65
1 Jul 202423.22
1 Jun 202423.75
1 May 202423.72
1 Apr 202423.37
1 Mar 202423.54
1 Feb 202423.09
1 Jan 202424.73
1 Dec 202325.43
1 Nov 202326.36
1 Oct 202324.61
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 202323.58
1 Feb 202323.79
1 Jan 202323.71
1 Dec 202222.06
1 Nov 202221.27
1 Oct 202220.00
1 Sep 202219.76
1 Aug 202219.60
1 Jul 202218.32
1 Jun 202219.01
1 May 202219.89
1 Apr 202220.70
1 Mar 202219.13
1 Feb 202218.51
1 Jan 202219.16
1 Dec 202119.87
1 Nov 202119.63
1 Oct 202117.87
1 Sep 202117.90
1 Aug 202117.57
1 Jul 202119.28
1 Jun 202118.69
1 May 202117.99
1 Apr 202118.05
1 Mar 202117.47
1 Feb 202118.17
1 Jan 202118.20
1 Dec 202019.03
1 Nov 202018.19
1 Oct 202016.18
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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.

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 Aug 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 October 2020 to 01 August 2025. It rose from 571.0 on 01 October 2020 to 575.33 on 01 July 2021. It fell from 588.67 on 01 August 2021 to 576.33 on 01 May 2022. It rose from 561.67 on 01 June 2022 to 609.67 on 01 March 2023. It rose from 608.0 on 01 April 2023 to 702.33 on 01 January 2024. It rose from 673.33 on 01 February 2024 to 788.0 on 01 November 2024. And finally. It rose from 780.0 on 01 December 2024 to 795.67 on 01 August 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 August 2025

MonthNumber tested
1 Aug 2025795.67
1 Jul 2025765.33
1 Jun 2025712.00
1 May 2025712.00
1 Apr 2025684.33
1 Mar 2025713.33
1 Feb 2025735.00
1 Jan 2025762.33
1 Dec 2024780.00
1 Nov 2024788.00
1 Oct 2024817.00
1 Sep 2024810.33
1 Aug 2024775.00
1 Jul 2024724.67
1 Jun 2024693.33
1 May 2024699.67
1 Apr 2024681.00
1 Mar 2024674.33
1 Feb 2024673.33
1 Jan 2024702.33
1 Dec 2023744.00
1 Nov 2023762.67
1 Oct 2023776.33
1 Sep 2023746.67
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 2022705.00
1 Oct 2022700.00
1 Sep 2022680.67
1 Aug 2022616.67
1 Jul 2022576.00
1 Jun 2022561.67
1 May 2022576.33
1 Apr 2022562.33
1 Mar 2022560.67
1 Feb 2022558.00
1 Jan 2022622.00
1 Dec 2021662.67
1 Nov 2021677.00
1 Oct 2021640.67
1 Sep 2021613.67
1 Aug 2021588.67
1 Jul 2021575.33
1 Jun 2021541.67
1 May 2021546.67
1 Apr 2021543.00
1 Mar 2021595.33
1 Feb 2021589.67
1 Jan 2021585.33
1 Dec 2020554.00
1 Nov 2020562.00
1 Oct 2020571.00
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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 Aug 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 October 2020 to 01 August 2025. It fell from 98.28 on 01 October 2020 to 97.29 on 01 July 2021. It rose from 97.03 on 01 August 2021 to 97.63 on 01 May 2022. It fell from 97.57 on 01 June 2022 to 96.97 on 01 March 2023. It fell from 97.28 on 01 April 2023 to 96.16 on 01 January 2024. It rose from 96.28 on 01 February 2024 to 96.57 on 01 November 2024. And finally. It rose from 96.18 on 01 December 2024 to 96.72 on 01 August 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 August 2025

Month% tested
1 Aug 202596.72
1 Jul 202596.96
1 Jun 202596.61
1 May 202596.61
1 Apr 202595.93
1 Mar 202596.35
1 Feb 202596.20
1 Jan 202596.09
1 Dec 202496.18
1 Nov 202496.57
1 Oct 202497.03
1 Sep 202497.01
1 Aug 202496.88
1 Jul 202496.40
1 Jun 202496.12
1 May 202496.28
1 Apr 202496.73
1 Mar 202496.42
1 Feb 202496.28
1 Jan 202496.16
1 Dec 202396.50
1 Nov 202396.21
1 Oct 202396.04
1 Sep 202396.13
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 202298.19
1 Oct 202297.63
1 Sep 202297.00
1 Aug 202297.01
1 Jul 202296.97
1 Jun 202297.57
1 May 202297.63
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 202196.82
1 Sep 202196.69
1 Aug 202197.03
1 Jul 202197.29
1 Jun 202197.48
1 May 202197.50
1 Apr 202198.01
1 Mar 202198.02
1 Feb 202197.52
1 Jan 202197.50
1 Dec 202097.54
1 Nov 202097.91
1 Oct 202098.28
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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 Aug 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 October 2020 to 01 August 2025. It rose from 14.36 on 01 October 2020 to 15.87 on 01 July 2021. It rose from 15.4 on 01 August 2021 to 16.71 on 01 May 2022. It rose from 16.68 on 01 June 2022 to 18.75 on 01 March 2023. It fell from 19.02 on 01 April 2023 to 18.46 on 01 January 2024. It rose from 17.33 on 01 February 2024 to 21.32 on 01 November 2024. And finally. It fell from 20.64 on 01 December 2024 to 18.52 on 01 August 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 August 2025

Month% resistant
1 Aug 202518.52
1 Jul 202518.38
1 Jun 202517.65
1 May 202518.40
1 Apr 202519.14
1 Mar 202518.93
1 Feb 202518.91
1 Jan 202519.28
1 Dec 202420.64
1 Nov 202421.32
1 Oct 202422.28
1 Sep 202421.51
1 Aug 202420.56
1 Jul 202419.32
1 Jun 202418.89
1 May 202418.53
1 Apr 202417.33
1 Mar 202416.71
1 Feb 202417.33
1 Jan 202418.46
1 Dec 202319.35
1 Nov 202320.06
1 Oct 202319.06
1 Sep 202318.88
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 202219.10
1 Oct 202217.90
1 Sep 202216.70
1 Aug 202216.59
1 Jul 202215.80
1 Jun 202216.68
1 May 202216.71
1 Apr 202217.66
1 Mar 202217.42
1 Feb 202216.85
1 Jan 202217.90
1 Dec 202117.76
1 Nov 202118.12
1 Oct 202115.82
1 Sep 202115.54
1 Aug 202115.40
1 Jul 202115.87
1 Jun 202115.88
1 May 202115.67
1 Apr 202116.02
1 Mar 202115.17
1 Feb 202115.66
1 Jan 202115.55
1 Dec 202016.31
1 Nov 202015.30
1 Oct 202014.36
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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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