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Entry title:

Antimicrobial resistance in Pseudomonas aeruginosa (P. aeruginosa) bacteraemia

Last updated on Thursday, 31 July 2025 at 04:20pm

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 Apr 2025

ChartThere are 5 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 July 2020 to 01 April 2025. It rose from 0.83 on 01 July 2020 to 2.08 on 01 April 2021. It fell from 2.06 on 01 May 2021 to 1.24 on 01 February 2022. It fell from 1.57 on 01 March 2022 to 0.75 on 01 December 2022. It rose from 0.91 on 01 January 2023 to 1.2 on 01 October 2023. It fell from 1.77 on 01 November 2023 to 1.26 on 01 July 2024. And finally. It rose from 1.17 on 01 August 2024 to 1.3 on 01 April 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 July 2020 to 01 April 2025. It rose from 10.32 on 01 July 2020 to 10.72 on 01 April 2021. It fell from 9.58 on 01 May 2021 to 8.89 on 01 February 2022. It fell from 8.85 on 01 March 2022 to 7.89 on 01 December 2022. It fell from 8.57 on 01 January 2023 to 6.29 on 01 October 2023. It fell from 7.1 on 01 November 2023 to 6.24 on 01 July 2024. And finally. It rose from 6.14 on 01 August 2024 to 6.98 on 01 April 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 July 2020 to 01 April 2025. It rose from 7.0 on 01 July 2020 to 8.4 on 01 April 2021. It fell from 8.24 on 01 May 2021 to 7.02 on 01 February 2022. It fell from 7.72 on 01 March 2022 to 7.05 on 01 December 2022. It fell from 6.97 on 01 January 2023 to 5.87 on 01 October 2023. It fell from 6.45 on 01 November 2023 to 6.42 on 01 July 2024. And finally. It rose from 5.88 on 01 August 2024 to 5.99 on 01 April 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 July 2020 to 01 April 2025. It rose from 8.01 on 01 July 2020 to 9.43 on 01 April 2021. It fell from 9.93 on 01 May 2021 to 8.26 on 01 February 2022. It fell from 8.38 on 01 March 2022 to 8.11 on 01 December 2022. It fell from 7.93 on 01 January 2023 to 7.3 on 01 October 2023. It fell from 8.35 on 01 November 2023 to 7.68 on 01 July 2024. And finally. It rose from 7.44 on 01 August 2024 to 8.47 on 01 April 2025. This is plot number 5 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 July 2020 to 01 April 2025. It rose from 9.34 on 01 July 2020 to 9.67 on 01 April 2021. It fell from 8.6 on 01 May 2021 to 8.13 on 01 February 2022. It fell from 8.82 on 01 March 2022 to 8.2 on 01 December 2022. It fell from 7.82 on 01 January 2023 to 6.56 on 01 October 2023. It rose from 6.42 on 01 November 2023 to 7.9 on 01 July 2024. And finally. It rose from 7.5 on 01 August 2024 to 7.95 on 01 April 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 April 2025

MonthAmikacin (Watch)Carbapenems (Reserve)
1 Apr 20251.306.98
1 Mar 20251.427.32
1 Feb 20251.537.08
1 Jan 20251.296.24
1 Dec 20241.466.88
1 Nov 20241.237.95
1 Oct 20241.398.57
1 Sep 20241.208.18
1 Aug 20241.176.14
1 Jul 20241.266.24
1 Jun 20241.157.68
1 May 20240.918.23
1 Apr 20240.747.84
1 Mar 20240.936.11
1 Feb 20241.047.17
1 Jan 20241.487.37
1 Dec 20231.768.27
1 Nov 20231.777.10
1 Oct 20231.206.29
1 Sep 20231.486.14
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 20230.689.00
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 20221.208.37
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 20211.288.73
1 Oct 20211.078.77
1 Sep 20211.228.85
1 Aug 20210.768.33
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 20201.196.88
1 Nov 20201.517.41
1 Oct 20201.627.58
1 Sep 20201.267.33
1 Aug 20200.928.55
1 Jul 20200.8310.32
MonthCeftazidime (Watch)Ciprofloxacin (Watch)
1 Apr 20255.998.47
1 Mar 20255.718.41
1 Feb 20256.739.69
1 Jan 20256.449.93
1 Dec 20246.079.27
1 Nov 20246.088.15
1 Oct 20246.557.48
1 Sep 20247.047.77
1 Aug 20245.887.44
1 Jul 20246.427.68
1 Jun 20246.918.73
1 May 20247.098.18
1 Apr 20245.887.98
1 Mar 20243.936.57
1 Feb 20244.167.07
1 Jan 20245.057.60
1 Dec 20236.478.40
1 Nov 20236.458.35
1 Oct 20235.877.30
1 Sep 20235.326.12
1 Aug 20236.096.36
1 Jul 20236.727.79
1 Jun 20237.598.83
1 May 20238.519.20
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 20227.147.13
1 May 20228.227.69
1 Apr 20227.477.94
1 Mar 20227.728.38
1 Feb 20227.028.26
1 Jan 20226.347.39
1 Dec 20215.676.91
1 Nov 20216.155.94
1 Oct 20217.406.24
1 Sep 20216.976.88
1 Aug 20216.907.32
1 Jul 20216.438.14
1 Jun 20217.769.00
1 May 20218.249.93
1 Apr 20218.409.43
1 Mar 20217.337.15
1 Feb 20217.586.70
1 Jan 20216.676.90
1 Dec 20207.957.67
1 Nov 20206.966.57
1 Oct 20207.297.58
1 Sep 20206.297.52
1 Aug 20206.468.66
1 Jul 20207.008.01
MonthPiperacillin with tazobactam
1 Apr 20257.95
1 Mar 20257.51
1 Feb 20257.31
1 Jan 20257.79
1 Dec 20248.30
1 Nov 20249.11
1 Oct 20248.62
1 Sep 20248.09
1 Aug 20247.50
1 Jul 20247.90
1 Jun 20248.58
1 May 20247.47
1 Apr 20246.54
1 Mar 20244.59
1 Feb 20245.24
1 Jan 20245.90
1 Dec 20237.13
1 Nov 20236.42
1 Oct 20236.56
1 Sep 20236.55
1 Aug 20237.60
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 20228.20
1 Nov 20228.50
1 Oct 20227.99
1 Sep 20227.72
1 Aug 20226.77
1 Jul 20227.54
1 Jun 20227.40
1 May 20228.01
1 Apr 20227.98
1 Mar 20228.82
1 Feb 20228.13
1 Jan 20227.04
1 Dec 20217.34
1 Nov 20217.57
1 Oct 20219.18
1 Sep 20218.51
1 Aug 20219.06
1 Jul 20217.53
1 Jun 20218.08
1 May 20218.60
1 Apr 20219.67
1 Mar 20218.90
1 Feb 20218.55
1 Jan 20218.00
1 Dec 20208.82
1 Nov 20207.79
1 Oct 20207.89
1 Sep 20207.73
1 Aug 20208.27
1 Jul 20209.34
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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.

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 Apr 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 July 2020 to 01 April 2025. It rose from 199.67 on 01 July 2020 to 208.0 on 01 April 2021. It rose from 210.0 on 01 May 2021 to 215.33 on 01 February 2022. It rose from 212.0 on 01 March 2022 to 266.33 on 01 December 2022. It rose from 255.33 on 01 January 2023 to 278.0 on 01 October 2023. It fell from 264.0 on 01 November 2023 to 238.33 on 01 July 2024. And finally. It fell from 255.33 on 01 August 2024 to 205.0 on 01 April 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 April 2025

MonthNumber tested
1 Apr 2025205.00
1 Mar 2025211.67
1 Feb 2025217.33
1 Jan 2025232.00
1 Dec 2024251.00
1 Nov 2024270.67
1 Oct 2024287.00
1 Sep 2024277.67
1 Aug 2024255.33
1 Jul 2024238.33
1 Jun 2024232.67
1 May 2024220.00
1 Apr 2024225.33
1 Mar 2024215.33
1 Feb 2024223.67
1 Jan 2024224.67
1 Dec 2023246.00
1 Nov 2023264.00
1 Oct 2023278.00
1 Sep 2023270.67
1 Aug 2023264.00
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 2022255.00
1 Aug 2022237.67
1 Jul 2022227.33
1 Jun 2022224.00
1 May 2022222.33
1 Apr 2022209.67
1 Mar 2022212.00
1 Feb 2022215.33
1 Jan 2022234.00
1 Dec 2021247.00
1 Nov 2021260.00
1 Oct 2021279.33
1 Sep 2021274.33
1 Aug 2021262.67
1 Jul 2021231.33
1 Jun 2021212.67
1 May 2021210.00
1 Apr 2021208.00
1 Mar 2021227.67
1 Feb 2021236.67
1 Jan 2021245.67
1 Dec 2020223.67
1 Nov 2020221.00
1 Oct 2020227.00
1 Sep 2020239.00
1 Aug 2020216.67
1 Jul 2020199.67
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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 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 Apr 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 July 2020 to 01 April 2025. It rose from 69.58 on 01 July 2020 to 70.75 on 01 April 2021. It rose from 70.71 on 01 May 2021 to 73.63 on 01 February 2022. It fell from 74.13 on 01 March 2022 to 72.48 on 01 December 2022. It rose from 73.28 on 01 January 2023 to 75.14 on 01 October 2023. It fell from 74.37 on 01 November 2023 to 71.69 on 01 July 2024. And finally. It fell from 72.24 on 01 August 2024 to 69.26 on 01 April 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 April 2025

Month% tested
1 Apr 202569.26
1 Mar 202572.51
1 Feb 202570.92
1 Jan 202570.95
1 Dec 202470.70
1 Nov 202472.78
1 Oct 202473.59
1 Sep 202474.46
1 Aug 202472.24
1 Jul 202471.69
1 Jun 202471.60
1 May 202472.37
1 Apr 202473.05
1 Mar 202470.72
1 Feb 202471.25
1 Jan 202471.11
1 Dec 202373.43
1 Nov 202374.37
1 Oct 202375.14
1 Sep 202374.38
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 202268.70
1 Jul 202271.38
1 Jun 202274.67
1 May 202274.25
1 Apr 202274.38
1 Mar 202274.13
1 Feb 202273.63
1 Jan 202274.76
1 Dec 202173.95
1 Nov 202173.45
1 Oct 202172.09
1 Sep 202169.72
1 Aug 202169.13
1 Jul 202167.94
1 Jun 202169.51
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
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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 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 Apr 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 July 2020 to 01 April 2025. It rose from 0.83 on 01 July 2020 to 2.08 on 01 April 2021. It fell from 2.06 on 01 May 2021 to 1.24 on 01 February 2022. It fell from 1.57 on 01 March 2022 to 0.75 on 01 December 2022. It rose from 0.91 on 01 January 2023 to 1.2 on 01 October 2023. It fell from 1.77 on 01 November 2023 to 1.26 on 01 July 2024. And finally. It rose from 1.17 on 01 August 2024 to 1.3 on 01 April 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 April 2025

Month% resistant
1 Apr 20251.30
1 Mar 20251.42
1 Feb 20251.53
1 Jan 20251.29
1 Dec 20241.46
1 Nov 20241.23
1 Oct 20241.39
1 Sep 20241.20
1 Aug 20241.17
1 Jul 20241.26
1 Jun 20241.15
1 May 20240.91
1 Apr 20240.74
1 Mar 20240.93
1 Feb 20241.04
1 Jan 20241.48
1 Dec 20231.76
1 Nov 20231.77
1 Oct 20231.20
1 Sep 20231.48
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 20221.20
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 20211.22
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
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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 Apr 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 July 2020 to 01 April 2025. It rose from 274.67 on 01 July 2020 to 286.0 on 01 April 2021. It fell from 288.67 on 01 May 2021 to 281.33 on 01 February 2022. It rose from 278.67 on 01 March 2022 to 350.67 on 01 December 2022. It rose from 330.67 on 01 January 2023 to 349.67 on 01 October 2023. It fell from 333.33 on 01 November 2023 to 315.33 on 01 July 2024. And finally. It fell from 336.67 on 01 August 2024 to 277.0 on 01 April 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 April 2025

MonthNumber tested
1 Apr 2025277.00
1 Mar 2025273.33
1 Feb 2025287.33
1 Jan 2025309.67
1 Dec 2024339.00
1 Nov 2024352.00
1 Oct 2024369.33
1 Sep 2024350.33
1 Aug 2024336.67
1 Jul 2024315.33
1 Jun 2024308.33
1 May 2024287.67
1 Apr 2024293.33
1 Mar 2024289.33
1 Feb 2024297.67
1 Jan 2024298.33
1 Dec 2023314.33
1 Nov 2023333.33
1 Oct 2023349.67
1 Sep 2023347.33
1 Aug 2023344.67
1 Jul 2023331.00
1 Jun 2023320.00
1 May 2023305.00
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 2022356.00
1 Aug 2022332.00
1 Jul 2022308.00
1 Jun 2022292.67
1 May 2022290.67
1 Apr 2022274.67
1 Mar 2022278.67
1 Feb 2022281.33
1 Jan 2022303.00
1 Dec 2021323.67
1 Nov 2021343.67
1 Oct 2021372.33
1 Sep 2021376.67
1 Aug 2021364.33
1 Jul 2021326.33
1 Jun 2021295.33
1 May 2021288.67
1 Apr 2021286.00
1 Mar 2021305.33
1 Feb 2021308.00
1 Jan 2021314.67
1 Dec 2020295.67
1 Nov 2020301.33
1 Oct 2020312.33
1 Sep 2020332.00
1 Aug 2020300.33
1 Jul 2020274.67
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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 Apr 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 July 2020 to 01 April 2025. It rose from 95.8 on 01 July 2020 to 97.28 on 01 April 2021. It fell from 96.97 on 01 May 2021 to 96.23 on 01 February 2022. It fell from 97.2 on 01 March 2022 to 95.37 on 01 December 2022. It fell from 94.83 on 01 January 2023 to 94.32 on 01 October 2023. It rose from 93.8 on 01 November 2023 to 94.88 on 01 July 2024. And finally. It fell from 95.18 on 01 August 2024 to 93.58 on 01 April 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 April 2025

Month% tested
1 Apr 202593.58
1 Mar 202593.81
1 Feb 202593.79
1 Jan 202594.50
1 Dec 202495.49
1 Nov 202494.88
1 Oct 202494.62
1 Sep 202494.09
1 Aug 202495.18
1 Jul 202494.88
1 Jun 202495.06
1 May 202494.41
1 Apr 202495.13
1 Mar 202495.07
1 Feb 202494.89
1 Jan 202494.60
1 Dec 202393.73
1 Nov 202393.80
1 Oct 202394.32
1 Sep 202395.59
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 202295.70
1 Aug 202296.23
1 Jul 202296.86
1 Jun 202297.33
1 May 202296.99
1 Apr 202297.51
1 Mar 202297.20
1 Feb 202296.23
1 Jan 202296.81
1 Dec 202196.71
1 Nov 202196.89
1 Oct 202196.12
1 Sep 202195.67
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 202096.09
1 Nov 202095.86
1 Oct 202095.71
1 Sep 202095.95
1 Aug 202096.46
1 Jul 202095.80
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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 Apr 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 July 2020 to 01 April 2025. It rose from 10.32 on 01 July 2020 to 10.72 on 01 April 2021. It fell from 9.58 on 01 May 2021 to 8.89 on 01 February 2022. It fell from 8.85 on 01 March 2022 to 7.89 on 01 December 2022. It fell from 8.57 on 01 January 2023 to 6.29 on 01 October 2023. It fell from 7.1 on 01 November 2023 to 6.24 on 01 July 2024. And finally. It rose from 6.14 on 01 August 2024 to 6.98 on 01 April 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 April 2025

Month% resistant
1 Apr 20256.98
1 Mar 20257.32
1 Feb 20257.08
1 Jan 20256.24
1 Dec 20246.88
1 Nov 20247.95
1 Oct 20248.57
1 Sep 20248.18
1 Aug 20246.14
1 Jul 20246.24
1 Jun 20247.68
1 May 20248.23
1 Apr 20247.84
1 Mar 20246.11
1 Feb 20247.17
1 Jan 20247.37
1 Dec 20238.27
1 Nov 20237.10
1 Oct 20236.29
1 Sep 20236.14
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 20239.00
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 20218.73
1 Oct 20218.77
1 Sep 20218.85
1 Aug 20218.33
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 20206.88
1 Nov 20207.41
1 Oct 20207.58
1 Sep 20207.33
1 Aug 20208.55
1 Jul 202010.32
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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.

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 Apr 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 July 2020 to 01 April 2025. It rose from 266.67 on 01 July 2020 to 281.67 on 01 April 2021. It fell from 283.0 on 01 May 2021 to 280.33 on 01 February 2022. It rose from 276.33 on 01 March 2022 to 345.0 on 01 December 2022. It rose from 325.33 on 01 January 2023 to 340.67 on 01 October 2023. It fell from 325.33 on 01 November 2023 to 301.0 on 01 July 2024. And finally. It fell from 323.0 on 01 August 2024 to 267.33 on 01 April 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 April 2025

MonthNumber tested
1 Apr 2025267.33
1 Mar 2025262.67
1 Feb 2025277.33
1 Jan 2025300.33
1 Dec 2024324.00
1 Nov 2024340.00
1 Oct 2024356.00
1 Sep 2024341.00
1 Aug 2024323.00
1 Jul 2024301.00
1 Jun 2024294.33
1 May 2024277.33
1 Apr 2024283.33
1 Mar 2024279.67
1 Feb 2024288.33
1 Jan 2024290.67
1 Dec 2023309.00
1 Nov 2023325.33
1 Oct 2023340.67
1 Sep 2023338.33
1 Aug 2023334.00
1 Jul 2023322.33
1 Jun 2023311.67
1 May 2023301.67
1 Apr 2023287.33
1 Mar 2023292.00
1 Feb 2023298.00
1 Jan 2023325.33
1 Dec 2022345.00
1 Nov 2022362.00
1 Oct 2022366.67
1 Sep 2022346.67
1 Aug 2022326.33
1 Jul 2022303.67
1 Jun 2022289.33
1 May 2022288.00
1 Apr 2022272.33
1 Mar 2022276.33
1 Feb 2022280.33
1 Jan 2022299.67
1 Dec 2021317.33
1 Nov 2021336.00
1 Oct 2021364.67
1 Sep 2021368.00
1 Aug 2021352.67
1 Jul 2021316.33
1 Jun 2021287.67
1 May 2021283.00
1 Apr 2021281.67
1 Mar 2021300.00
1 Feb 2021303.33
1 Jan 2021310.00
1 Dec 2020293.67
1 Nov 2020301.67
1 Oct 2020311.00
1 Sep 2020328.67
1 Aug 2020294.00
1 Jul 2020266.67
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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 Apr 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 July 2020 to 01 April 2025. It rose from 93.01 on 01 July 2020 to 95.58 on 01 April 2021. It rose from 95.29 on 01 May 2021 to 95.89 on 01 February 2022. It fell from 96.5 on 01 March 2022 to 94.01 on 01 December 2022. It fell from 93.39 on 01 January 2023 to 91.89 on 01 October 2023. It fell from 91.55 on 01 November 2023 to 90.66 on 01 July 2024. And finally. It fell from 91.5 on 01 August 2024 to 90.2 on 01 April 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 April 2025

Month% tested
1 Apr 202590.20
1 Mar 202590.03
1 Feb 202590.52
1 Jan 202591.74
1 Dec 202491.27
1 Nov 202491.64
1 Oct 202491.28
1 Sep 202491.67
1 Aug 202491.50
1 Jul 202490.66
1 Jun 202490.74
1 May 202491.12
1 Apr 202491.88
1 Mar 202491.78
1 Feb 202492.01
1 Jan 202492.06
1 Dec 202392.24
1 Nov 202391.55
1 Oct 202391.89
1 Sep 202393.11
1 Aug 202393.30
1 Jul 202393.33
1 Jun 202393.11
1 May 202393.77
1 Apr 202393.18
1 Mar 202392.70
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 202296.80
1 Mar 202296.50
1 Feb 202295.89
1 Jan 202295.53
1 Dec 202194.91
1 Nov 202194.92
1 Oct 202194.06
1 Sep 202193.64
1 Aug 202192.88
1 Jul 202192.94
1 Jun 202194.10
1 May 202195.29
1 Apr 202195.58
1 Mar 202194.94
1 Feb 202194.39
1 Jan 202195.09
1 Dec 202095.44
1 Nov 202095.86
1 Oct 202095.40
1 Sep 202094.80
1 Aug 202094.53
1 Jul 202093.01
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

Resistance

Rolling monthly average percent of 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 Apr 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 July 2020 to 01 April 2025. It rose from 7.0 on 01 July 2020 to 8.4 on 01 April 2021. It fell from 8.24 on 01 May 2021 to 7.02 on 01 February 2022. It fell from 7.72 on 01 March 2022 to 7.05 on 01 December 2022. It fell from 6.97 on 01 January 2023 to 5.87 on 01 October 2023. It fell from 6.45 on 01 November 2023 to 6.42 on 01 July 2024. And finally. It rose from 5.88 on 01 August 2024 to 5.99 on 01 April 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 April 2025

Month% resistant
1 Apr 20255.99
1 Mar 20255.71
1 Feb 20256.73
1 Jan 20256.44
1 Dec 20246.07
1 Nov 20246.08
1 Oct 20246.55
1 Sep 20247.04
1 Aug 20245.88
1 Jul 20246.42
1 Jun 20246.91
1 May 20247.09
1 Apr 20245.88
1 Mar 20243.93
1 Feb 20244.16
1 Jan 20245.05
1 Dec 20236.47
1 Nov 20236.45
1 Oct 20235.87
1 Sep 20235.32
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 20227.14
1 May 20228.22
1 Apr 20227.47
1 Mar 20227.72
1 Feb 20227.02
1 Jan 20226.34
1 Dec 20215.67
1 Nov 20216.15
1 Oct 20217.40
1 Sep 20216.97
1 Aug 20216.90
1 Jul 20216.43
1 Jun 20217.76
1 May 20218.24
1 Apr 20218.40
1 Mar 20217.33
1 Feb 20217.58
1 Jan 20216.67
1 Dec 20207.95
1 Nov 20206.96
1 Oct 20207.29
1 Sep 20206.29
1 Aug 20206.46
1 Jul 20207.00
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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.

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 Apr 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 July 2020 to 01 April 2025. It rose from 274.67 on 01 July 2020 to 282.67 on 01 April 2021. It rose from 282.0 on 01 May 2021 to 282.33 on 01 February 2022. It rose from 278.33 on 01 March 2022 to 349.33 on 01 December 2022. It rose from 327.67 on 01 January 2023 to 342.33 on 01 October 2023. It fell from 327.33 on 01 November 2023 to 299.33 on 01 July 2024. And finally. It fell from 318.0 on 01 August 2024 to 271.67 on 01 April 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 April 2025

MonthNumber tested
1 Apr 2025271.67
1 Mar 2025269.67
1 Feb 2025278.67
1 Jan 2025298.67
1 Dec 2024323.67
1 Nov 2024339.67
1 Oct 2024356.33
1 Sep 2024334.67
1 Aug 2024318.00
1 Jul 2024299.33
1 Jun 2024297.67
1 May 2024281.33
1 Apr 2024288.33
1 Mar 2024284.33
1 Feb 2024292.33
1 Jan 2024293.67
1 Dec 2023309.67
1 Nov 2023327.33
1 Oct 2023342.33
1 Sep 2023337.67
1 Aug 2023335.67
1 Jul 2023325.00
1 Jun 2023313.33
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 2022371.00
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 2022273.00
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 2021378.00
1 Aug 2021364.33
1 Jul 2021323.33
1 Jun 2021289.00
1 May 2021282.00
1 Apr 2021282.67
1 Mar 2021303.00
1 Feb 2021308.33
1 Jan 2021314.00
1 Dec 2020295.67
1 Nov 2020304.33
1 Oct 2020316.67
1 Sep 2020337.00
1 Aug 2020300.33
1 Jul 2020274.67
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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 Apr 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 July 2020 to 01 April 2025. It rose from 95.8 on 01 July 2020 to 95.92 on 01 April 2021. It rose from 94.95 on 01 May 2021 to 96.58 on 01 February 2022. It fell from 97.2 on 01 March 2022 to 95.1 on 01 December 2022. It fell from 93.97 on 01 January 2023 to 92.43 on 01 October 2023. It fell from 92.11 on 01 November 2023 to 90.06 on 01 July 2024. And finally. It rose from 90.08 on 01 August 2024 to 91.55 on 01 April 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 April 2025

Month% tested
1 Apr 202591.55
1 Mar 202592.44
1 Feb 202590.85
1 Jan 202591.13
1 Dec 202490.99
1 Nov 202491.37
1 Oct 202491.28
1 Sep 202489.78
1 Aug 202490.08
1 Jul 202490.06
1 Jun 202491.67
1 May 202492.43
1 Apr 202493.51
1 Mar 202493.42
1 Feb 202493.29
1 Jan 202493.02
1 Dec 202392.24
1 Nov 202392.11
1 Oct 202392.43
1 Sep 202392.84
1 Aug 202393.58
1 Jul 202394.20
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 202295.10
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 202297.20
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 202195.00
1 Jun 202194.75
1 May 202194.95
1 Apr 202195.92
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 202097.40
1 Aug 202096.46
1 Jul 202095.80
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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 Apr 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 July 2020 to 01 April 2025. It rose from 8.01 on 01 July 2020 to 9.43 on 01 April 2021. It fell from 9.93 on 01 May 2021 to 8.26 on 01 February 2022. It fell from 8.38 on 01 March 2022 to 8.11 on 01 December 2022. It fell from 7.93 on 01 January 2023 to 7.3 on 01 October 2023. It fell from 8.35 on 01 November 2023 to 7.68 on 01 July 2024. And finally. It rose from 7.44 on 01 August 2024 to 8.47 on 01 April 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 April 2025

Month% resistant
1 Apr 20258.47
1 Mar 20258.41
1 Feb 20259.69
1 Jan 20259.93
1 Dec 20249.27
1 Nov 20248.15
1 Oct 20247.48
1 Sep 20247.77
1 Aug 20247.44
1 Jul 20247.68
1 Jun 20248.73
1 May 20248.18
1 Apr 20247.98
1 Mar 20246.57
1 Feb 20247.07
1 Jan 20247.60
1 Dec 20238.40
1 Nov 20238.35
1 Oct 20237.30
1 Sep 20236.12
1 Aug 20236.36
1 Jul 20237.79
1 Jun 20238.83
1 May 20239.20
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 20217.32
1 Jul 20218.14
1 Jun 20219.00
1 May 20219.93
1 Apr 20219.43
1 Mar 20217.15
1 Feb 20216.70
1 Jan 20216.90
1 Dec 20207.67
1 Nov 20206.57
1 Oct 20207.58
1 Sep 20207.52
1 Aug 20208.66
1 Jul 20208.01
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Source: AMR module of Second Generation Surveillance System (SGSS). SGSS is a live reporting database, and therefore data is subject to change. Note 1: The chart shows a three-month rolling average, so the data shown for one month is the average across that month and the previous two months. Note 2: Interpreting national antibiotic resistance surveillance trends spanning European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoint transition periods requires additional consideration to avoid misinterpretation of data.

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 Apr 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 July 2020 to 01 April 2025. It rose from 264.0 on 01 July 2020 to 275.67 on 01 April 2021. It fell from 279.0 on 01 May 2021 to 270.67 on 01 February 2022. It rose from 264.67 on 01 March 2022 to 329.33 on 01 December 2022. It rose from 311.33 on 01 January 2023 to 330.33 on 01 October 2023. It fell from 311.67 on 01 November 2023 to 291.0 on 01 July 2024. And finally. It fell from 306.67 on 01 August 2024 to 268.33 on 01 April 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 April 2025

MonthNumber tested
1 Apr 2025268.33
1 Mar 2025262.00
1 Feb 2025278.00
1 Jan 2025299.67
1 Dec 2024329.33
1 Nov 2024340.33
1 Oct 2024348.00
1 Sep 2024325.67
1 Aug 2024306.67
1 Jul 2024291.00
1 Jun 2024283.67
1 May 2024263.33
1 Apr 2024270.00
1 Mar 2024268.67
1 Feb 2024279.67
1 Jan 2024277.00
1 Dec 2023294.33
1 Nov 2023311.67
1 Oct 2023330.33
1 Sep 2023320.67
1 Aug 2023315.67
1 Jul 2023302.67
1 Jun 2023296.33
1 May 2023285.33
1 Apr 2023276.00
1 Mar 2023281.67
1 Feb 2023289.67
1 Jan 2023311.33
1 Dec 2022329.33
1 Nov 2022349.00
1 Oct 2022354.67
1 Sep 2022337.00
1 Aug 2022315.00
1 Jul 2022291.67
1 Jun 2022274.67
1 May 2022270.33
1 Apr 2022259.00
1 Mar 2022264.67
1 Feb 2022270.67
1 Jan 2022288.67
1 Dec 2021308.67
1 Nov 2021326.00
1 Oct 2021355.67
1 Sep 2021360.33
1 Aug 2021349.33
1 Jul 2021314.33
1 Jun 2021284.67
1 May 2021279.00
1 Apr 2021275.67
1 Mar 2021292.00
1 Feb 2021292.33
1 Jan 2021295.67
1 Dec 2020279.67
1 Nov 2020291.00
1 Oct 2020304.00
1 Sep 2020323.33
1 Aug 2020286.33
1 Jul 2020264.00
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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 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 Apr 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 July 2020 to 01 April 2025. It rose from 92.31 on 01 July 2020 to 93.54 on 01 April 2021. It fell from 93.94 on 01 May 2021 to 92.47 on 01 February 2022. It fell from 92.31 on 01 March 2022 to 89.65 on 01 December 2022. It fell from 89.37 on 01 January 2023 to 89.19 on 01 October 2023. It rose from 87.61 on 01 November 2023 to 87.65 on 01 July 2024. And finally. It rose from 86.69 on 01 August 2024 to 90.54 on 01 April 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 April 2025

Month% tested
1 Apr 202590.54
1 Mar 202590.03
1 Feb 202590.85
1 Jan 202591.44
1 Dec 202492.68
1 Nov 202491.64
1 Oct 202489.23
1 Sep 202487.37
1 Aug 202486.69
1 Jul 202487.65
1 Jun 202487.35
1 May 202486.51
1 Apr 202487.66
1 Mar 202488.16
1 Feb 202489.14
1 Jan 202487.94
1 Dec 202387.76
1 Nov 202387.61
1 Oct 202389.19
1 Sep 202388.15
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 202291.30
1 Jul 202291.51
1 Jun 202291.33
1 May 202290.30
1 Apr 202292.17
1 Mar 202292.31
1 Feb 202292.47
1 Jan 202292.01
1 Dec 202192.22
1 Nov 202192.09
1 Oct 202191.73
1 Sep 202191.60
1 Aug 202192.08
1 Jul 202192.35
1 Jun 202193.11
1 May 202193.94
1 Apr 202193.54
1 Mar 202192.41
1 Feb 202190.97
1 Jan 202190.49
1 Dec 202090.88
1 Nov 202092.68
1 Oct 202093.25
1 Sep 202093.35
1 Aug 202091.96
1 Jul 202092.31
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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 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 Apr 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 July 2020 to 01 April 2025. It rose from 9.34 on 01 July 2020 to 9.67 on 01 April 2021. It fell from 8.6 on 01 May 2021 to 8.13 on 01 February 2022. It fell from 8.82 on 01 March 2022 to 8.2 on 01 December 2022. It fell from 7.82 on 01 January 2023 to 6.56 on 01 October 2023. It rose from 6.42 on 01 November 2023 to 7.9 on 01 July 2024. And finally. It rose from 7.5 on 01 August 2024 to 7.95 on 01 April 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 April 2025

Month% resistant
1 Apr 20257.95
1 Mar 20257.51
1 Feb 20257.31
1 Jan 20257.79
1 Dec 20248.30
1 Nov 20249.11
1 Oct 20248.62
1 Sep 20248.09
1 Aug 20247.50
1 Jul 20247.90
1 Jun 20248.58
1 May 20247.47
1 Apr 20246.54
1 Mar 20244.59
1 Feb 20245.24
1 Jan 20245.90
1 Dec 20237.13
1 Nov 20236.42
1 Oct 20236.56
1 Sep 20236.55
1 Aug 20237.60
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 20228.20
1 Nov 20228.50
1 Oct 20227.99
1 Sep 20227.72
1 Aug 20226.77
1 Jul 20227.54
1 Jun 20227.40
1 May 20228.01
1 Apr 20227.98
1 Mar 20228.82
1 Feb 20228.13
1 Jan 20227.04
1 Dec 20217.34
1 Nov 20217.57
1 Oct 20219.18
1 Sep 20218.51
1 Aug 20219.06
1 Jul 20217.53
1 Jun 20218.08
1 May 20218.60
1 Apr 20219.67
1 Mar 20218.90
1 Feb 20218.55
1 Jan 20218.00
1 Dec 20208.82
1 Nov 20207.79
1 Oct 20207.89
1 Sep 20207.73
1 Aug 20208.27
1 Jul 20209.34
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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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