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Entry title:

Antimicrobial resistance in Pseudomonas aeruginosa (P. aeruginosa)

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

This page provides information on resistance to antimicrobials in Pseudomonas aeruginosa bacteraemia (bacteria found in blood specimens). Data breakdowns are available for England and by UKHSA Region.

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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 P. aeruginosa bacteraemia resistant to amikacin, carbapenems, ceftazidime, ciprofloxacin, gentamicin and 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 are 6 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 1.54 on 01 April 2020 to 0.54 on 01 January 2021. It rose from 0.85 on 01 February 2021 to 1.28 on 01 November 2021. It rose from 0.94 on 01 December 2021 to 1.05 on 01 September 2022. It rose from 0.61 on 01 October 2022 to 1.71 on 01 July 2023. It fell from 1.26 on 01 August 2023 to 0.92 on 01 May 2024. And finally. It rose from 1.16 on 01 June 2024 to 1.38 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 7.12 on 01 April 2020 to 5.93 on 01 January 2021. It rose from 7.58 on 01 February 2021 to 8.72 on 01 November 2021. It fell from 8.34 on 01 December 2021 to 7.02 on 01 September 2022. It rose from 6.43 on 01 October 2022 to 7.96 on 01 July 2023. It rose from 7.06 on 01 August 2023 to 8.07 on 01 May 2024. And finally. It fell from 7.54 on 01 June 2024 to 7.13 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 'Ceftazidime (Watch)'. This plot shows data for P-aeruginosa. Specifically the metric 'p-aeruginosa_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 5.37 on 01 April 2020 to 6.67 on 01 January 2021. It fell from 7.57 on 01 February 2021 to 6.14 on 01 November 2021. It rose from 5.67 on 01 December 2021 to 7.02 on 01 September 2022. It fell from 6.82 on 01 October 2022 to 6.72 on 01 July 2023. It rose from 6.09 on 01 August 2023 to 7.03 on 01 May 2024. And finally. It fell from 6.86 on 01 June 2024 to 6.78 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 'Ciprofloxacin (Watch)'. This plot shows data for P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 7.5 on 01 April 2020 to 6.9 on 01 January 2021. It fell from 6.7 on 01 February 2021 to 5.94 on 01 November 2021. It rose from 6.91 on 01 December 2021 to 8.49 on 01 September 2022. It fell from 9.12 on 01 October 2022 to 7.79 on 01 July 2023. It rose from 6.35 on 01 August 2023 to 8.25 on 01 May 2024. And finally. It rose from 8.82 on 01 June 2024 to 9.63 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 3.66 on 01 April 2020 to 3.16 on 01 January 2021. It rose from 3.53 on 01 February 2021 to 4.7 on 01 November 2021. It fell from 5.76 on 01 December 2021 to 2.88 on 01 September 2022. It rose from 2.75 on 01 October 2022 to 3.69 on 01 July 2023. It rose from 3.86 on 01 August 2023 to 4.41 on 01 May 2024. And finally. It rose from 3.25 on 01 June 2024 to 6.13 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'. This plot shows data for P-aeruginosa. Specifically the metric 'p-aeruginosa_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 7.13 on 01 April 2020 to 8.11 on 01 January 2021. It fell from 8.55 on 01 February 2021 to 7.56 on 01 November 2021. It rose from 7.33 on 01 December 2021 to 7.72 on 01 September 2022. It fell from 7.99 on 01 October 2022 to 6.83 on 01 July 2023. It fell from 7.6 on 01 August 2023 to 7.41 on 01 May 2024. And finally. It fell from 8.55 on 01 June 2024 to 7.37 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 P. aeruginosa bacteraemia resistant to amikacin, carbapenems, ceftazidime, ciprofloxacin, gentamicin and 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

MonthAmikacin (Watch)Carbapenems (Reserve)
1 Feb 20251.387.13
1 Jan 20251.296.26
1 Dec 20241.466.91
1 Nov 20241.247.99
1 Oct 20241.48.61
1 Sep 20241.228.17
1 Aug 20241.196.09
1 Jul 20241.286.22
1 Jun 20241.167.54
1 May 20240.928.07
1 Apr 20240.757.68
1 Mar 20240.936.13
1 Feb 20241.057.22
1 Jan 20241.57.42
1 Dec 20231.798.24
1 Nov 20231.797.06
1 Oct 20231.216.22
1 Sep 20231.496.15
1 Aug 20231.267.06
1 Jul 20231.717.96
1 Jun 20231.228.33
1 May 20231.269.29
1 Apr 20230.879.85
1 Mar 20230.579.87
1 Feb 20230.689
1 Jan 20230.918.57
1 Dec 20220.757.89
1 Nov 20220.987.16
1 Oct 20220.616.43
1 Sep 20221.057.02
1 Aug 20220.427.33
1 Jul 20220.598.23
1 Jun 20220.748.09
1 May 20221.28.37
1 Apr 20221.278.13
1 Mar 20221.578.85
1 Feb 20221.248.89
1 Jan 20221.579.02
1 Dec 20210.948.34
1 Nov 20211.288.72
1 Oct 20211.078.76
1 Sep 20211.218.83
1 Aug 20210.768.32
1 Jul 20211.018.38
1 Jun 20210.947.79
1 May 20212.069.58
1 Apr 20212.0810.72
1 Mar 20211.619.72
1 Feb 20210.857.58
1 Jan 20210.545.93
1 Dec 20201.196.87
1 Nov 20201.517.4
1 Oct 20201.627.57
1 Sep 20201.267.33
1 Aug 20200.928.55
1 Jul 20200.8310.32
1 Jun 20201.079.83
1 May 20201.458.28
1 Apr 20201.547.12
MonthCeftazidime (Watch)Ciprofloxacin (Watch)
1 Feb 20256.789.63
1 Jan 20256.459.96
1 Dec 20246.099.2
1 Nov 20246.18.09
1 Oct 20246.597.43
1 Sep 20247.127.82
1 Aug 20245.957.48
1 Jul 20246.527.76
1 Jun 20246.868.82
1 May 20247.038.25
1 Apr 20245.818.03
1 Mar 20243.956.59
1 Feb 20244.197.1
1 Jan 20245.087.64
1 Dec 20236.438.44
1 Nov 20236.428.4
1 Oct 20235.817.32
1 Sep 20235.346.13
1 Aug 20236.096.35
1 Jul 20236.727.79
1 Jun 20237.598.82
1 May 20238.519.2
1 Apr 20238.587.62
1 Mar 20238.567.65
1 Feb 20237.057.51
1 Jan 20236.977.93
1 Dec 20227.058.11
1 Nov 20227.558.36
1 Oct 20226.829.12
1 Sep 20227.028.49
1 Aug 20226.138.25
1 Jul 20227.467.05
1 Jun 20227.137.13
1 May 20228.217.69
1 Apr 20227.467.94
1 Mar 20227.728.38
1 Feb 20227.028.26
1 Jan 20226.337.39
1 Dec 20215.676.91
1 Nov 20216.145.94
1 Oct 20217.46.24
1 Sep 20216.976.88
1 Aug 20216.897.31
1 Jul 20216.438.14
1 Jun 20217.758.99
1 May 20218.249.92
1 Apr 20218.389.42
1 Mar 20217.337.14
1 Feb 20217.576.7
1 Jan 20216.676.9
1 Dec 20207.957.67
1 Nov 20206.966.57
1 Oct 20207.297.58
1 Sep 20206.287.52
1 Aug 20206.458.66
1 Jul 20206.988.01
1 Jun 20207.097.49
1 May 20206.527.5
1 Apr 20205.377.5
MonthGentamicin (Access)Piperacillin with tazobactam
1 Feb 20256.137.37
1 Jan 20255.767.8
1 Dec 20245.238.33
1 Nov 20246.269.15
1 Oct 20246.328.66
1 Sep 20246.218.17
1 Aug 20244.227.57
1 Jul 20243.298.02
1 Jun 20243.258.55
1 May 20244.417.41
1 Apr 20244.716.48
1 Mar 20245.094.61
1 Feb 20243.795.28
1 Jan 20243.965.93
1 Dec 20233.687.07
1 Nov 20234.366.36
1 Oct 20234.126.49
1 Sep 20234.426.57
1 Aug 20233.867.6
1 Jul 20233.696.83
1 Jun 20233.637.99
1 May 20235.418.29
1 Apr 20235.4110.02
1 Mar 20234.288.64
1 Feb 20232.478.52
1 Jan 20233.057.82
1 Dec 20223.278.2
1 Nov 20223.168.5
1 Oct 20222.757.99
1 Sep 20222.887.72
1 Aug 20222.746.77
1 Jul 20222.797.54
1 Jun 20222.257.4
1 May 20222.528.01
1 Apr 20222.087.98
1 Mar 20223.918.82
1 Feb 20225.878.12
1 Jan 20226.757.04
1 Dec 20215.767.33
1 Nov 20214.77.56
1 Oct 20214.079.17
1 Sep 20214.228.5
1 Aug 20214.299.06
1 Jul 20214.467.53
1 Jun 20214.048.08
1 May 20214.68.59
1 Apr 20214.569.66
1 Mar 20213.798.89
1 Feb 20213.538.55
1 Jan 20213.168.11
1 Dec 20204.088.93
1 Nov 20203.427.89
1 Oct 20203.777.89
1 Sep 20203.937.72
1 Aug 20204.228.26
1 Jul 20204.459.33
1 Jun 20204.849
1 May 20204.448.25
1 Apr 20203.667.13
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 194.33 on 01 April 2020 to 245.67 on 01 January 2021. It rose from 236.67 on 01 February 2021 to 260.67 on 01 November 2021. It rose from 247.33 on 01 December 2021 to 255.0 on 01 September 2022. It fell from 274.33 on 01 October 2022 to 253.33 on 01 July 2023. It fell from 264.0 on 01 August 2023 to 217.67 on 01 May 2024. And finally. It fell from 229.67 on 01 June 2024 to 217.33 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 P. aeruginosa 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 2025217.33
1 Jan 2025232
1 Dec 2024250.33
1 Nov 2024269
1 Oct 2024285
1 Sep 2024274.33
1 Aug 2024252.33
1 Jul 2024234.67
1 Jun 2024229.67
1 May 2024217.67
1 Apr 2024222.67
1 Mar 2024214
1 Feb 2024221.67
1 Jan 2024222.33
1 Dec 2023242.67
1 Nov 2023260
1 Oct 2023275.67
1 Sep 2023269.33
1 Aug 2023264
1 Jul 2023253.33
1 Jun 2023245.67
1 May 2023238.67
1 Apr 2023228.67
1 Mar 2023234.33
1 Feb 2023243.33
1 Jan 2023255.33
1 Dec 2022266.33
1 Nov 2022272.33
1 Oct 2022274.33
1 Sep 2022255
1 Aug 2022237.67
1 Jul 2022227.33
1 Jun 2022224
1 May 2022222.67
1 Apr 2022210
1 Mar 2022212.33
1 Feb 2022215.33
1 Jan 2022234
1 Dec 2021247.33
1 Nov 2021260.67
1 Oct 2021280.33
1 Sep 2021275
1 Aug 2021263
1 Jul 2021231.33
1 Jun 2021213
1 May 2021210.33
1 Apr 2021208.33
1 Mar 2021227.67
1 Feb 2021236.67
1 Jan 2021245.67
1 Dec 2020223.67
1 Nov 2020221
1 Oct 2020227
1 Sep 2020239
1 Aug 2020216.67
1 Jul 2020199.67
1 Jun 2020187.67
1 May 2020183.67
1 Apr 2020194.33
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 73.21 on 01 April 2020 to 75.15 on 01 January 2021. It fell from 73.52 on 01 February 2021 to 73.45 on 01 November 2021. It fell from 73.95 on 01 December 2021 to 68.55 on 01 September 2022. It rose from 69.54 on 01 October 2022 to 73.33 on 01 July 2023. It fell from 73.74 on 01 August 2023 to 72.09 on 01 May 2024. And finally. It rose from 71.34 on 01 June 2024 to 71.38 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 P. aeruginosa 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 202571.38
1 Jan 202571.17
1 Dec 202470.82
1 Nov 202472.9
1 Oct 202473.45
1 Sep 202474.66
1 Aug 202472.21
1 Jul 202471.56
1 Jun 202471.34
1 May 202472.09
1 Apr 202472.55
1 Mar 202470.63
1 Feb 202471.06
1 Jan 202471.15
1 Dec 202373.11
1 Nov 202374.29
1 Oct 202374.93
1 Sep 202374.52
1 Aug 202373.74
1 Jul 202373.33
1 Jun 202373.35
1 May 202374.14
1 Apr 202374.03
1 Mar 202374.29
1 Feb 202375.47
1 Jan 202373.28
1 Dec 202272.48
1 Nov 202270.28
1 Oct 202269.54
1 Sep 202268.55
1 Aug 202268.7
1 Jul 202271.38
1 Jun 202274.67
1 May 202274.25
1 Apr 202274.73
1 Mar 202274.13
1 Feb 202273.63
1 Jan 202274.76
1 Dec 202173.95
1 Nov 202173.45
1 Oct 202172.35
1 Sep 202169.97
1 Aug 202169.39
1 Jul 202167.94
1 Jun 202169.84
1 May 202170.71
1 Apr 202170.75
1 Mar 202171.84
1 Feb 202173.52
1 Jan 202175.15
1 Dec 202072.64
1 Nov 202070.38
1 Oct 202069.63
1 Sep 202069.08
1 Aug 202069.45
1 Jul 202069.58
1 Jun 202072.2
1 May 202072.05
1 Apr 202073.21
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 1.54 on 01 April 2020 to 0.54 on 01 January 2021. It rose from 0.85 on 01 February 2021 to 1.28 on 01 November 2021. It rose from 0.94 on 01 December 2021 to 1.05 on 01 September 2022. It rose from 0.61 on 01 October 2022 to 1.71 on 01 July 2023. It fell from 1.26 on 01 August 2023 to 0.92 on 01 May 2024. And finally. It rose from 1.16 on 01 June 2024 to 1.38 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 P. aeruginosa 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 20251.38
1 Jan 20251.29
1 Dec 20241.46
1 Nov 20241.24
1 Oct 20241.4
1 Sep 20241.22
1 Aug 20241.19
1 Jul 20241.28
1 Jun 20241.16
1 May 20240.92
1 Apr 20240.75
1 Mar 20240.93
1 Feb 20241.05
1 Jan 20241.5
1 Dec 20231.79
1 Nov 20231.79
1 Oct 20231.21
1 Sep 20231.49
1 Aug 20231.26
1 Jul 20231.71
1 Jun 20231.22
1 May 20231.26
1 Apr 20230.87
1 Mar 20230.57
1 Feb 20230.68
1 Jan 20230.91
1 Dec 20220.75
1 Nov 20220.98
1 Oct 20220.61
1 Sep 20221.05
1 Aug 20220.42
1 Jul 20220.59
1 Jun 20220.74
1 May 20221.2
1 Apr 20221.27
1 Mar 20221.57
1 Feb 20221.24
1 Jan 20221.57
1 Dec 20210.94
1 Nov 20211.28
1 Oct 20211.07
1 Sep 20211.21
1 Aug 20210.76
1 Jul 20211.01
1 Jun 20210.94
1 May 20212.06
1 Apr 20212.08
1 Mar 20211.61
1 Feb 20210.85
1 Jan 20210.54
1 Dec 20201.19
1 Nov 20201.51
1 Oct 20201.62
1 Sep 20201.26
1 Aug 20200.92
1 Jul 20200.83
1 Jun 20201.07
1 May 20201.45
1 Apr 20201.54
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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.

Carbapenems

Testing

Rolling monthly average number of P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 257.67 on 01 April 2020 to 314.67 on 01 January 2021. It rose from 308.0 on 01 February 2021 to 344.0 on 01 November 2021. It rose from 323.67 on 01 December 2021 to 356.0 on 01 September 2022. It fell from 378.33 on 01 October 2022 to 331.0 on 01 July 2023. It fell from 344.67 on 01 August 2023 to 285.0 on 01 May 2024. And finally. It fell from 305.0 on 01 June 2024 to 285.33 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 P. aeruginosa 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 2025285.33
1 Jan 2025309
1 Dec 2024337.67
1 Nov 2024350.33
1 Oct 2024367.67
1 Sep 2024347
1 Aug 2024333.67
1 Jul 2024311
1 Jun 2024305
1 May 2024285
1 Apr 2024290.67
1 Mar 2024288
1 Feb 2024295.67
1 Jan 2024296.33
1 Dec 2023311.67
1 Nov 2023330.67
1 Oct 2023348.33
1 Sep 2023346.67
1 Aug 2023344.67
1 Jul 2023331
1 Jun 2023320
1 May 2023305
1 Apr 2023294.33
1 Mar 2023300.67
1 Feb 2023307.33
1 Jan 2023330.67
1 Dec 2022350.67
1 Nov 2022372.67
1 Oct 2022378.33
1 Sep 2022356
1 Aug 2022332
1 Jul 2022308
1 Jun 2022292.67
1 May 2022290.67
1 Apr 2022274.67
1 Mar 2022278.67
1 Feb 2022281.33
1 Jan 2022303
1 Dec 2021323.67
1 Nov 2021344
1 Oct 2021373
1 Sep 2021377.33
1 Aug 2021364.67
1 Jul 2021326.33
1 Jun 2021295.33
1 May 2021288.67
1 Apr 2021286
1 Mar 2021305.33
1 Feb 2021308
1 Jan 2021314.67
1 Dec 2020296
1 Nov 2020301.67
1 Oct 2020312.67
1 Sep 2020332
1 Aug 2020300.33
1 Jul 2020274.67
1 Jun 2020251
1 May 2020245.67
1 Apr 2020257.67
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 96.98 on 01 April 2020 to 96.32 on 01 January 2021. It rose from 95.95 on 01 February 2021 to 97.18 on 01 November 2021. It fell from 96.71 on 01 December 2021 to 95.7 on 01 September 2022. The date fluctuates between 95.94 on 01 October 2022, ending with the same value on 01 July 2023. It fell from 96.09 on 01 August 2023 to 94.68 on 01 May 2024. And finally. It fell from 95.02 on 01 June 2024 to 93.75 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 P. aeruginosa 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 202593.75
1 Jan 202594.79
1 Dec 202495.47
1 Nov 202494.85
1 Oct 202494.59
1 Sep 202494.55
1 Aug 202495.42
1 Jul 202495.11
1 Jun 202495.02
1 May 202494.68
1 Apr 202494.77
1 Mar 202495.05
1 Feb 202494.86
1 Jan 202494.87
1 Dec 202393.96
1 Nov 202394.29
1 Oct 202394.82
1 Sep 202395.84
1 Aug 202396.09
1 Jul 202395.94
1 Jun 202395.81
1 May 202395.02
1 Apr 202395.45
1 Mar 202395.24
1 Feb 202395.34
1 Jan 202394.83
1 Dec 202295.37
1 Nov 202296.12
1 Oct 202295.94
1 Sep 202295.7
1 Aug 202296.23
1 Jul 202296.86
1 Jun 202297.33
1 May 202296.99
1 Apr 202297.51
1 Mar 202297.2
1 Feb 202296.23
1 Jan 202296.81
1 Dec 202196.71
1 Nov 202197.18
1 Oct 202196.38
1 Sep 202195.93
1 Aug 202196.04
1 Jul 202195.88
1 Jun 202196.72
1 May 202196.97
1 Apr 202197.28
1 Mar 202196.52
1 Feb 202195.95
1 Jan 202196.32
1 Dec 202096.42
1 Nov 202095.86
1 Oct 202095.71
1 Sep 202095.95
1 Aug 202096.46
1 Jul 202095.8
1 Jun 202096.91
1 May 202096.46
1 Apr 202096.98
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 7.12 on 01 April 2020 to 5.93 on 01 January 2021. It rose from 7.58 on 01 February 2021 to 8.72 on 01 November 2021. It fell from 8.34 on 01 December 2021 to 7.02 on 01 September 2022. It rose from 6.43 on 01 October 2022 to 7.96 on 01 July 2023. It rose from 7.06 on 01 August 2023 to 8.07 on 01 May 2024. And finally. It fell from 7.54 on 01 June 2024 to 7.13 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 P. aeruginosa 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 20257.13
1 Jan 20256.26
1 Dec 20246.91
1 Nov 20247.99
1 Oct 20248.61
1 Sep 20248.17
1 Aug 20246.09
1 Jul 20246.22
1 Jun 20247.54
1 May 20248.07
1 Apr 20247.68
1 Mar 20246.13
1 Feb 20247.22
1 Jan 20247.42
1 Dec 20238.24
1 Nov 20237.06
1 Oct 20236.22
1 Sep 20236.15
1 Aug 20237.06
1 Jul 20237.96
1 Jun 20238.33
1 May 20239.29
1 Apr 20239.85
1 Mar 20239.87
1 Feb 20239
1 Jan 20238.57
1 Dec 20227.89
1 Nov 20227.16
1 Oct 20226.43
1 Sep 20227.02
1 Aug 20227.33
1 Jul 20228.23
1 Jun 20228.09
1 May 20228.37
1 Apr 20228.13
1 Mar 20228.85
1 Feb 20228.89
1 Jan 20229.02
1 Dec 20218.34
1 Nov 20218.72
1 Oct 20218.76
1 Sep 20218.83
1 Aug 20218.32
1 Jul 20218.38
1 Jun 20217.79
1 May 20219.58
1 Apr 202110.72
1 Mar 20219.72
1 Feb 20217.58
1 Jan 20215.93
1 Dec 20206.87
1 Nov 20207.4
1 Oct 20207.57
1 Sep 20207.33
1 Aug 20208.55
1 Jul 202010.32
1 Jun 20209.83
1 May 20208.28
1 Apr 20207.12
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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.

Ceftazidime

Testing

Rolling monthly average number of P. aeruginosa bacteraemia tested for resistance to ceftazidime. 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 254.67 on 01 April 2020 to 310.0 on 01 January 2021. It rose from 303.67 on 01 February 2021 to 336.33 on 01 November 2021. It rose from 317.67 on 01 December 2021 to 346.67 on 01 September 2022. It fell from 366.67 on 01 October 2022 to 322.33 on 01 July 2023. It fell from 334.0 on 01 August 2023 to 275.0 on 01 May 2024. And finally. It fell from 291.33 on 01 June 2024 to 275.33 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 P. aeruginosa bacteraemia tested for resistance to ceftazidime. 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 2025275.33
1 Jan 2025299.67
1 Dec 2024323
1 Nov 2024338.67
1 Oct 2024354
1 Sep 2024337
1 Aug 2024319.33
1 Jul 2024296.33
1 Jun 2024291.33
1 May 2024275
1 Apr 2024281.33
1 Mar 2024278.33
1 Feb 2024286.67
1 Jan 2024288.67
1 Dec 2023306
1 Nov 2023321.67
1 Oct 2023338.67
1 Sep 2023337.33
1 Aug 2023334
1 Jul 2023322.33
1 Jun 2023311.67
1 May 2023301.67
1 Apr 2023287.33
1 Mar 2023292
1 Feb 2023298
1 Jan 2023325.33
1 Dec 2022345
1 Nov 2022362
1 Oct 2022366.67
1 Sep 2022346.67
1 Aug 2022326.33
1 Jul 2022303.67
1 Jun 2022289.67
1 May 2022288.33
1 Apr 2022272.67
1 Mar 2022276.33
1 Feb 2022280.33
1 Jan 2022300
1 Dec 2021317.67
1 Nov 2021336.33
1 Oct 2021365
1 Sep 2021368.33
1 Aug 2021353
1 Jul 2021316.33
1 Jun 2021288
1 May 2021283.33
1 Apr 2021282.33
1 Mar 2021300.33
1 Feb 2021303.67
1 Jan 2021310
1 Dec 2020293.67
1 Nov 2020301.67
1 Oct 2020311
1 Sep 2020329
1 Aug 2020294.67
1 Jul 2020267.33
1 Jun 2020244.33
1 May 2020240.33
1 Apr 2020254.67
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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 P. aeruginosa bacteraemia tested for resistance to ceftazidime. 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 95.85 on 01 April 2020 to 95.09 on 01 January 2021. It rose from 94.39 on 01 February 2021 to 94.92 on 01 November 2021. It fell from 94.91 on 01 December 2021 to 93.01 on 01 September 2022. It rose from 92.89 on 01 October 2022 to 93.33 on 01 July 2023. It fell from 93.3 on 01 August 2023 to 91.36 on 01 May 2024. And finally. It fell from 90.65 on 01 June 2024 to 90.46 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 P. aeruginosa bacteraemia tested for resistance to ceftazidime. 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 202590.46
1 Jan 202591.72
1 Dec 202491.5
1 Nov 202491.6
1 Oct 202491.24
1 Sep 202491.83
1 Aug 202491.4
1 Jul 202490.52
1 Jun 202490.65
1 May 202491.36
1 Apr 202491.83
1 Mar 202491.75
1 Feb 202491.96
1 Jan 202492.31
1 Dec 202392.45
1 Nov 202391.71
1 Oct 202392.1
1 Sep 202393.35
1 Aug 202393.3
1 Jul 202393.33
1 Jun 202393.11
1 May 202393.77
1 Apr 202393.18
1 Mar 202392.7
1 Feb 202392.55
1 Jan 202393.39
1 Dec 202294.01
1 Nov 202293.54
1 Oct 202292.89
1 Sep 202293.01
1 Aug 202294.49
1 Jul 202295.28
1 Jun 202296.33
1 May 202296.32
1 Apr 202296.8
1 Mar 202296.5
1 Feb 202295.89
1 Jan 202295.85
1 Dec 202194.91
1 Nov 202194.92
1 Oct 202194.32
1 Sep 202193.64
1 Aug 202193.14
1 Jul 202192.94
1 Jun 202194.43
1 May 202195.29
1 Apr 202195.92
1 Mar 202194.94
1 Feb 202194.39
1 Jan 202195.09
1 Dec 202095.44
1 Nov 202095.86
1 Oct 202095.4
1 Sep 202095.09
1 Aug 202094.53
1 Jul 202093.36
1 Jun 202094.21
1 May 202094.49
1 Apr 202095.85
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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 P. aeruginosa bacteraemia resistant to ceftazidime. 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 5.37 on 01 April 2020 to 6.67 on 01 January 2021. It fell from 7.57 on 01 February 2021 to 6.14 on 01 November 2021. It rose from 5.67 on 01 December 2021 to 7.02 on 01 September 2022. It fell from 6.82 on 01 October 2022 to 6.72 on 01 July 2023. It rose from 6.09 on 01 August 2023 to 7.03 on 01 May 2024. And finally. It fell from 6.86 on 01 June 2024 to 6.78 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 P. aeruginosa bacteraemia resistant to ceftazidime. 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 20256.78
1 Jan 20256.45
1 Dec 20246.09
1 Nov 20246.1
1 Oct 20246.59
1 Sep 20247.12
1 Aug 20245.95
1 Jul 20246.52
1 Jun 20246.86
1 May 20247.03
1 Apr 20245.81
1 Mar 20243.95
1 Feb 20244.19
1 Jan 20245.08
1 Dec 20236.43
1 Nov 20236.42
1 Oct 20235.81
1 Sep 20235.34
1 Aug 20236.09
1 Jul 20236.72
1 Jun 20237.59
1 May 20238.51
1 Apr 20238.58
1 Mar 20238.56
1 Feb 20237.05
1 Jan 20236.97
1 Dec 20227.05
1 Nov 20227.55
1 Oct 20226.82
1 Sep 20227.02
1 Aug 20226.13
1 Jul 20227.46
1 Jun 20227.13
1 May 20228.21
1 Apr 20227.46
1 Mar 20227.72
1 Feb 20227.02
1 Jan 20226.33
1 Dec 20215.67
1 Nov 20216.14
1 Oct 20217.4
1 Sep 20216.97
1 Aug 20216.89
1 Jul 20216.43
1 Jun 20217.75
1 May 20218.24
1 Apr 20218.38
1 Mar 20217.33
1 Feb 20217.57
1 Jan 20216.67
1 Dec 20207.95
1 Nov 20206.96
1 Oct 20207.29
1 Sep 20206.28
1 Aug 20206.45
1 Jul 20206.98
1 Jun 20207.09
1 May 20206.52
1 Apr 20205.37
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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.

Ciprofloxacin

Testing

Rolling monthly average number of P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 257.67 on 01 April 2020 to 314.0 on 01 January 2021. It rose from 308.33 on 01 February 2021 to 342.33 on 01 November 2021. It rose from 323.33 on 01 December 2021 to 357.33 on 01 September 2022. It fell from 376.33 on 01 October 2022 to 325.33 on 01 July 2023. It fell from 336.0 on 01 August 2023 to 278.67 on 01 May 2024. And finally. It fell from 294.67 on 01 June 2024 to 277.0 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 P. aeruginosa 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 2025277
1 Jan 2025298
1 Dec 2024322.33
1 Nov 2024338
1 Oct 2024354.33
1 Sep 2024332.33
1 Aug 2024316.33
1 Jul 2024296.33
1 Jun 2024294.67
1 May 2024278.67
1 Apr 2024286.33
1 Mar 2024283.33
1 Feb 2024291
1 Jan 2024292.33
1 Dec 2023308
1 Nov 2023325.33
1 Oct 2023341.33
1 Sep 2023337
1 Aug 2023336
1 Jul 2023325.33
1 Jun 2023313.67
1 May 2023300.67
1 Apr 2023288.67
1 Mar 2023296.33
1 Feb 2023301.67
1 Jan 2023327.67
1 Dec 2022349.33
1 Nov 2022371
1 Oct 2022376.33
1 Sep 2022357.33
1 Aug 2022331.33
1 Jul 2022307.33
1 Jun 2022289.67
1 May 2022290.33
1 Apr 2022273
1 Mar 2022278.33
1 Feb 2022282.33
1 Jan 2022302.33
1 Dec 2021323.33
1 Nov 2021342.33
1 Oct 2021373.67
1 Sep 2021378
1 Aug 2021364.67
1 Jul 2021323.67
1 Jun 2021289.33
1 May 2021282.33
1 Apr 2021283
1 Mar 2021303.33
1 Feb 2021308.33
1 Jan 2021314
1 Dec 2020295.67
1 Nov 2020304.33
1 Oct 2020316.67
1 Sep 2020337
1 Aug 2020300.33
1 Jul 2020274.67
1 Jun 2020249.33
1 May 2020244.33
1 Apr 2020257.67
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 96.98 on 01 April 2020 to 96.32 on 01 January 2021. It rose from 95.95 on 01 February 2021 to 96.61 on 01 November 2021. It fell from 96.71 on 01 December 2021 to 95.97 on 01 September 2022. It fell from 95.43 on 01 October 2022 to 94.2 on 01 July 2023. It fell from 93.85 on 01 August 2023 to 92.36 on 01 May 2024. And finally. It fell from 91.59 on 01 June 2024 to 91.12 on 01 February 2025. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Testing data for rolling monthly average percent of P. aeruginosa 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 202591.12
1 Jan 202591.41
1 Dec 202491.22
1 Nov 202491.6
1 Oct 202491.24
1 Sep 202490.46
1 Aug 202490.54
1 Jul 202490.52
1 Jun 202491.59
1 May 202492.36
1 Apr 202493.46
1 Mar 202493.4
1 Feb 202493.57
1 Jan 202493.59
1 Dec 202393.05
1 Nov 202392.86
1 Oct 202392.92
1 Sep 202393.35
1 Aug 202393.85
1 Jul 202394.2
1 Jun 202393.71
1 May 202393.46
1 Apr 202393.51
1 Mar 202393.97
1 Feb 202393.48
1 Jan 202393.97
1 Dec 202295.1
1 Nov 202295.87
1 Oct 202295.43
1 Sep 202295.97
1 Aug 202295.94
1 Jul 202296.54
1 Jun 202296.33
1 May 202296.99
1 Apr 202297.15
1 Mar 202297.2
1 Feb 202296.58
1 Jan 202296.49
1 Dec 202196.71
1 Nov 202196.61
1 Oct 202196.38
1 Sep 202196.18
1 Aug 202196.04
1 Jul 202195
1 Jun 202194.75
1 May 202194.95
1 Apr 202196.26
1 Mar 202195.89
1 Feb 202195.95
1 Jan 202196.32
1 Dec 202096.09
1 Nov 202096.82
1 Oct 202096.93
1 Sep 202097.4
1 Aug 202096.46
1 Jul 202095.8
1 Jun 202096.14
1 May 202096.06
1 Apr 202096.98
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 7.5 on 01 April 2020 to 6.9 on 01 January 2021. It fell from 6.7 on 01 February 2021 to 5.94 on 01 November 2021. It rose from 6.91 on 01 December 2021 to 8.49 on 01 September 2022. It fell from 9.12 on 01 October 2022 to 7.79 on 01 July 2023. It rose from 6.35 on 01 August 2023 to 8.25 on 01 May 2024. And finally. It rose from 8.82 on 01 June 2024 to 9.63 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 P. aeruginosa 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 20259.63
1 Jan 20259.96
1 Dec 20249.2
1 Nov 20248.09
1 Oct 20247.43
1 Sep 20247.82
1 Aug 20247.48
1 Jul 20247.76
1 Jun 20248.82
1 May 20248.25
1 Apr 20248.03
1 Mar 20246.59
1 Feb 20247.1
1 Jan 20247.64
1 Dec 20238.44
1 Nov 20238.4
1 Oct 20237.32
1 Sep 20236.13
1 Aug 20236.35
1 Jul 20237.79
1 Jun 20238.82
1 May 20239.2
1 Apr 20237.62
1 Mar 20237.65
1 Feb 20237.51
1 Jan 20237.93
1 Dec 20228.11
1 Nov 20228.36
1 Oct 20229.12
1 Sep 20228.49
1 Aug 20228.25
1 Jul 20227.05
1 Jun 20227.13
1 May 20227.69
1 Apr 20227.94
1 Mar 20228.38
1 Feb 20228.26
1 Jan 20227.39
1 Dec 20216.91
1 Nov 20215.94
1 Oct 20216.24
1 Sep 20216.88
1 Aug 20217.31
1 Jul 20218.14
1 Jun 20218.99
1 May 20219.92
1 Apr 20219.42
1 Mar 20217.14
1 Feb 20216.7
1 Jan 20216.9
1 Dec 20207.67
1 Nov 20206.57
1 Oct 20207.58
1 Sep 20207.52
1 Aug 20208.66
1 Jul 20208.01
1 Jun 20207.49
1 May 20207.5
1 Apr 20207.5
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 255.0 on 01 April 2020 to 274.0 on 01 January 2021. It fell from 264.33 on 01 February 2021 to 219.67 on 01 November 2021. It rose from 202.67 on 01 December 2021 to 220.0 on 01 September 2022. It fell from 230.67 on 01 October 2022 to 180.67 on 01 July 2023. It fell from 181.33 on 01 August 2023 to 151.33 on 01 May 2024. And finally. It fell from 164.33 on 01 June 2024 to 141.33 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 P. aeruginosa 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 2025141.33
1 Jan 2025150.33
1 Dec 2024159.33
1 Nov 2024170.33
1 Oct 2024184.67
1 Sep 2024177
1 Aug 2024173.67
1 Jul 2024162
1 Jun 2024164.33
1 May 2024151.33
1 Apr 2024148.67
1 Mar 2024144
1 Feb 2024149.67
1 Jan 2024160
1 Dec 2023172
1 Nov 2023183.33
1 Oct 2023186
1 Sep 2023188.67
1 Aug 2023181.33
1 Jul 2023180.67
1 Jun 2023174.33
1 May 2023172.67
1 Apr 2023172.67
1 Mar 2023179
1 Feb 2023189
1 Jan 2023196.67
1 Dec 2022214
1 Nov 2022221.33
1 Oct 2022230.67
1 Sep 2022220
1 Aug 2022207
1 Jul 2022191
1 Jun 2022177.67
1 May 2022185.33
1 Apr 2022176.33
1 Mar 2022179
1 Feb 2022176
1 Jan 2022192.67
1 Dec 2021202.67
1 Nov 2021219.67
1 Oct 2021246
1 Sep 2021268.67
1 Aug 2021272
1 Jul 2021254
1 Jun 2021231
1 May 2021231.67
1 Apr 2021233.67
1 Mar 2021255.33
1 Feb 2021264.33
1 Jan 2021274
1 Dec 2020261.67
1 Nov 2020272.67
1 Oct 2020282.67
1 Sep 2020305.67
1 Aug 2020276.33
1 Jul 2020262.33
1 Jun 2020241
1 May 2020240
1 Apr 2020255
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 96.23 on 01 April 2020 to 84.05 on 01 January 2021. It fell from 82.24 on 01 February 2021 to 61.86 on 01 November 2021. It fell from 60.48 on 01 December 2021 to 59.14 on 01 September 2022. It fell from 58.38 on 01 October 2022 to 52.17 on 01 July 2023. It fell from 50.56 on 01 August 2023 to 50.17 on 01 May 2024. And finally. It fell from 51.09 on 01 June 2024 to 46.38 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 P. aeruginosa 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 202546.38
1 Jan 202546.01
1 Dec 202445.04
1 Nov 202446.07
1 Oct 202447.42
1 Sep 202448.23
1 Aug 202449.57
1 Jul 202449.54
1 Jun 202451.09
1 May 202450.17
1 Apr 202448.37
1 Mar 202447.52
1 Feb 202447.91
1 Jan 202451.28
1 Dec 202351.96
1 Nov 202352.29
1 Oct 202350.68
1 Sep 202352.08
1 Aug 202350.56
1 Jul 202352.17
1 Jun 202352.1
1 May 202353.58
1 Apr 202355.84
1 Mar 202356.83
1 Feb 202358.7
1 Jan 202356.32
1 Dec 202258.31
1 Nov 202257.11
1 Oct 202258.38
1 Sep 202259.14
1 Aug 202260
1 Jul 202260.06
1 Jun 202259
1 May 202261.87
1 Apr 202262.63
1 Mar 202262.59
1 Feb 202260.27
1 Jan 202261.34
1 Dec 202160.48
1 Nov 202161.86
1 Oct 202163.57
1 Sep 202168.19
1 Aug 202171.77
1 Jul 202174.71
1 Jun 202175.74
1 May 202177.78
1 Apr 202179.25
1 Mar 202180.7
1 Feb 202182.24
1 Jan 202184.05
1 Dec 202085.02
1 Nov 202086.62
1 Oct 202086.5
1 Sep 202088.15
1 Aug 202088.75
1 Jul 202091.61
1 Jun 202093.05
1 May 202094.49
1 Apr 202096.23
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 fell from 3.66 on 01 April 2020 to 3.16 on 01 January 2021. It rose from 3.53 on 01 February 2021 to 4.7 on 01 November 2021. It fell from 5.76 on 01 December 2021 to 2.88 on 01 September 2022. It rose from 2.75 on 01 October 2022 to 3.69 on 01 July 2023. It rose from 3.86 on 01 August 2023 to 4.41 on 01 May 2024. And finally. It rose from 3.25 on 01 June 2024 to 6.13 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 P. aeruginosa 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 20256.13
1 Jan 20255.76
1 Dec 20245.23
1 Nov 20246.26
1 Oct 20246.32
1 Sep 20246.21
1 Aug 20244.22
1 Jul 20243.29
1 Jun 20243.25
1 May 20244.41
1 Apr 20244.71
1 Mar 20245.09
1 Feb 20243.79
1 Jan 20243.96
1 Dec 20233.68
1 Nov 20234.36
1 Oct 20234.12
1 Sep 20234.42
1 Aug 20233.86
1 Jul 20233.69
1 Jun 20233.63
1 May 20235.41
1 Apr 20235.41
1 Mar 20234.28
1 Feb 20232.47
1 Jan 20233.05
1 Dec 20223.27
1 Nov 20223.16
1 Oct 20222.75
1 Sep 20222.88
1 Aug 20222.74
1 Jul 20222.79
1 Jun 20222.25
1 May 20222.52
1 Apr 20222.08
1 Mar 20223.91
1 Feb 20225.87
1 Jan 20226.75
1 Dec 20215.76
1 Nov 20214.7
1 Oct 20214.07
1 Sep 20214.22
1 Aug 20214.29
1 Jul 20214.46
1 Jun 20214.04
1 May 20214.6
1 Apr 20214.56
1 Mar 20213.79
1 Feb 20213.53
1 Jan 20213.16
1 Dec 20204.08
1 Nov 20203.42
1 Oct 20203.77
1 Sep 20203.93
1 Aug 20204.22
1 Jul 20204.45
1 Jun 20204.84
1 May 20204.44
1 Apr 20203.66
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 247.67 on 01 April 2020 to 296.0 on 01 January 2021. It rose from 292.33 on 01 February 2021 to 326.33 on 01 November 2021. It rose from 309.33 on 01 December 2021 to 337.0 on 01 September 2022. It fell from 354.67 on 01 October 2022 to 302.67 on 01 July 2023. It fell from 315.67 on 01 August 2023 to 261.0 on 01 May 2024. And finally. It fell from 280.67 on 01 June 2024 to 276.0 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 P. aeruginosa 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 2025276
1 Jan 2025299
1 Dec 2024328
1 Nov 2024338.67
1 Oct 2024346.33
1 Sep 2024322.33
1 Aug 2024303.67
1 Jul 2024286.67
1 Jun 2024280.67
1 May 2024261
1 Apr 2024267.67
1 Mar 2024267.33
1 Feb 2024277.67
1 Jan 2024275.67
1 Dec 2023292.33
1 Nov 2023309.33
1 Oct 2023328.67
1 Sep 2023319.67
1 Aug 2023315.67
1 Jul 2023302.67
1 Jun 2023296.33
1 May 2023285.33
1 Apr 2023276
1 Mar 2023281.67
1 Feb 2023289.67
1 Jan 2023311.33
1 Dec 2022329.33
1 Nov 2022349
1 Oct 2022354.67
1 Sep 2022337
1 Aug 2022315
1 Jul 2022291.67
1 Jun 2022274.67
1 May 2022270.33
1 Apr 2022259
1 Mar 2022264.67
1 Feb 2022271
1 Jan 2022289
1 Dec 2021309.33
1 Nov 2021326.33
1 Oct 2021356.33
1 Sep 2021360.67
1 Aug 2021349.67
1 Jul 2021314.33
1 Jun 2021284.67
1 May 2021279.33
1 Apr 2021276
1 Mar 2021292.33
1 Feb 2021292.33
1 Jan 2021296
1 Dec 2020280
1 Nov 2020291.33
1 Oct 2020304
1 Sep 2020323.67
1 Aug 2020286.67
1 Jul 2020264.33
1 Jun 2020240.67
1 May 2020238.33
1 Apr 2020247.67
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 93.21 on 01 April 2020 to 90.8 on 01 January 2021. It rose from 90.97 on 01 February 2021 to 92.09 on 01 November 2021. It fell from 92.51 on 01 December 2021 to 90.59 on 01 September 2022. It fell from 89.85 on 01 October 2022 to 87.54 on 01 July 2023. It fell from 87.99 on 01 August 2023 to 86.71 on 01 May 2024. And finally. It rose from 87.23 on 01 June 2024 to 90.79 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 P. aeruginosa 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 202590.79
1 Jan 202591.72
1 Dec 202492.92
1 Nov 202491.6
1 Oct 202489.18
1 Sep 202487.74
1 Aug 202486.82
1 Jul 202487.46
1 Jun 202487.23
1 May 202486.71
1 Apr 202487.25
1 Mar 202488.12
1 Feb 202489.07
1 Jan 202488.14
1 Dec 202388.22
1 Nov 202388.29
1 Oct 202389.37
1 Sep 202388.37
1 Aug 202387.99
1 Jul 202387.54
1 Jun 202388.62
1 May 202388.79
1 Apr 202389.61
1 Mar 202389.21
1 Feb 202389.75
1 Jan 202389.37
1 Dec 202289.65
1 Nov 202290.18
1 Oct 202289.85
1 Sep 202290.59
1 Aug 202291.3
1 Jul 202291.51
1 Jun 202291.33
1 May 202290.3
1 Apr 202292.17
1 Mar 202292.31
1 Feb 202292.81
1 Jan 202292.33
1 Dec 202192.51
1 Nov 202192.09
1 Oct 202191.99
1 Sep 202191.6
1 Aug 202192.08
1 Jul 202192.35
1 Jun 202193.11
1 May 202193.94
1 Apr 202193.88
1 Mar 202192.41
1 Feb 202190.97
1 Jan 202190.8
1 Dec 202091.21
1 Nov 202092.68
1 Oct 202093.25
1 Sep 202093.35
1 Aug 202091.96
1 Jul 202092.31
1 Jun 202092.66
1 May 202093.7
1 Apr 202093.21
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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 P. aeruginosa 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 P-aeruginosa. Specifically the metric 'p-aeruginosa_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 7.13 on 01 April 2020 to 8.11 on 01 January 2021. It fell from 8.55 on 01 February 2021 to 7.56 on 01 November 2021. It rose from 7.33 on 01 December 2021 to 7.72 on 01 September 2022. It fell from 7.99 on 01 October 2022 to 6.83 on 01 July 2023. It fell from 7.6 on 01 August 2023 to 7.41 on 01 May 2024. And finally. It fell from 8.55 on 01 June 2024 to 7.37 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 P. aeruginosa 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 20257.37
1 Jan 20257.8
1 Dec 20248.33
1 Nov 20249.15
1 Oct 20248.66
1 Sep 20248.17
1 Aug 20247.57
1 Jul 20248.02
1 Jun 20248.55
1 May 20247.41
1 Apr 20246.48
1 Mar 20244.61
1 Feb 20245.28
1 Jan 20245.93
1 Dec 20237.07
1 Nov 20236.36
1 Oct 20236.49
1 Sep 20236.57
1 Aug 20237.6
1 Jul 20236.83
1 Jun 20237.99
1 May 20238.29
1 Apr 202310.02
1 Mar 20238.64
1 Feb 20238.52
1 Jan 20237.82
1 Dec 20228.2
1 Nov 20228.5
1 Oct 20227.99
1 Sep 20227.72
1 Aug 20226.77
1 Jul 20227.54
1 Jun 20227.4
1 May 20228.01
1 Apr 20227.98
1 Mar 20228.82
1 Feb 20228.12
1 Jan 20227.04
1 Dec 20217.33
1 Nov 20217.56
1 Oct 20219.17
1 Sep 20218.5
1 Aug 20219.06
1 Jul 20217.53
1 Jun 20218.08
1 May 20218.59
1 Apr 20219.66
1 Mar 20218.89
1 Feb 20218.55
1 Jan 20218.11
1 Dec 20208.93
1 Nov 20207.89
1 Oct 20207.89
1 Sep 20207.72
1 Aug 20208.26
1 Jul 20209.33
1 Jun 20209
1 May 20208.25
1 Apr 20207.13
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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.

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