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Entry title:

Antimicrobial resistance in Pseudomonas aeruginosa (P. aeruginosa) bacteraemia

Last updated on Thursday, 24 September 2026 at 04:00pm

Information
Missing ICB data

Due to technical issues, data for NHS Norfolk and Suffolk Integrated Care Board is unavailable. We are working to resolve this issue.

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 Jul 2026

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 2021 to 01 July 2026. It rose from 0.87 on 01 July 2021 to 1.2 on 01 May 2022. It fell from 0.75 on 01 June 2022 to 0.57 on 01 March 2023. It rose from 0.87 on 01 April 2023 to 1.49 on 01 January 2024. It rose from 1.04 on 01 February 2024 to 1.35 on 01 November 2024. It fell from 1.58 on 01 December 2024 to 0.95 on 01 September 2025. And finally. It fell from 0.84 on 01 October 2025 to 0.68 on 01 July 2026. 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 2021 to 01 July 2026. It rose from 8.3 on 01 July 2021 to 8.39 on 01 May 2022. It rose from 8.11 on 01 June 2022 to 9.87 on 01 March 2023. It fell from 9.85 on 01 April 2023 to 7.37 on 01 January 2024. It rose from 7.17 on 01 February 2024 to 8.03 on 01 November 2024. It fell from 7.03 on 01 December 2024 to 6.97 on 01 September 2025. And finally. It fell from 7.06 on 01 October 2025 to 6.49 on 01 July 2026. 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 2021 to 01 July 2026. It rose from 6.46 on 01 July 2021 to 8.23 on 01 May 2022. It rose from 7.14 on 01 June 2022 to 8.56 on 01 March 2023. It fell from 8.58 on 01 April 2023 to 5.05 on 01 January 2024. It rose from 4.16 on 01 February 2024 to 6.16 on 01 November 2024. It fell from 6.13 on 01 December 2024 to 6.12 on 01 September 2025. And finally. It fell from 4.92 on 01 October 2025 to 4.06 on 01 July 2026. 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 2021 to 01 July 2026. It fell from 8.16 on 01 July 2021 to 7.63 on 01 May 2022. It rose from 7.08 on 01 June 2022 to 7.55 on 01 March 2023. It fell from 7.62 on 01 April 2023 to 7.6 on 01 January 2024. It rose from 7.07 on 01 February 2024 to 8.23 on 01 November 2024. It fell from 9.42 on 01 December 2024 to 5.7 on 01 September 2025. And finally. It rose from 6.44 on 01 October 2025 to 7.08 on 01 July 2026. 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 (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 2021 to 01 July 2026. It rose from 7.57 on 01 July 2021 to 8.02 on 01 May 2022. It rose from 7.41 on 01 June 2022 to 8.64 on 01 March 2023. It fell from 10.02 on 01 April 2023 to 5.9 on 01 January 2024. It rose from 5.24 on 01 February 2024 to 9.21 on 01 November 2024. It fell from 8.47 on 01 December 2024 to 7.52 on 01 September 2025. And finally. It fell from 6.67 on 01 October 2025 to 5.22 on 01 July 2026. 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 month of 1 Jul 2026

Month Amikacin (Watch) Carbapenems (Reserve)
1 Jul 20260.686.49
1 Jun 20260.627.15
1 May 20260.476.88
1 Apr 20260.617.79
1 Mar 20260.737.63
1 Feb 20261.129.14
1 Jan 20261.067.82
1 Dec 20250.997.13
1 Nov 20250.845.64
1 Oct 20250.847.06
1 Sep 20250.956.97
1 Aug 20250.768.15
1 Jul 20250.687.15
1 Jun 20250.447.10
1 May 20251.207.13
1 Apr 20251.287.20
1 Mar 20251.407.36
1 Feb 20251.527.13
1 Jan 20251.286.30
1 Dec 20241.587.03
1 Nov 20241.358.03
1 Oct 20241.518.65
1 Sep 20241.208.17
1 Aug 20241.176.13
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 20241.497.37
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 20220.616.44
1 Sep 20221.057.04
1 Aug 20220.427.34
1 Jul 20220.598.25
1 Jun 20220.758.11
1 May 20221.208.39
1 Apr 20221.288.16
1 Mar 20221.588.89
1 Feb 20221.248.93
1 Jan 20221.579.05
1 Dec 20210.958.36
1 Nov 20211.298.77
1 Oct 20211.098.80
1 Sep 20211.238.79
1 Aug 20210.778.25
1 Jul 20210.878.30
Month Ceftazidime (Watch) Ciprofloxacin (Watch)
1 Jul 20264.067.08
1 Jun 20264.527.35
1 May 20264.527.24
1 Apr 20266.168.41
1 Mar 20265.787.93
1 Feb 20266.927.17
1 Jan 20266.356.98
1 Dec 20256.187.10
1 Nov 20255.347.05
1 Oct 20254.926.44
1 Sep 20256.125.70
1 Aug 20256.325.69
1 Jul 20257.046.50
1 Jun 20256.397.97
1 May 20256.798.71
1 Apr 20256.378.47
1 Mar 20255.908.33
1 Feb 20256.799.73
1 Jan 20256.399.97
1 Dec 20246.139.42
1 Nov 20246.168.23
1 Oct 20246.647.57
1 Sep 20247.037.76
1 Aug 20245.887.43
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 20236.727.80
1 Jun 20237.598.84
1 May 20238.519.21
1 Apr 20238.587.62
1 Mar 20238.567.55
1 Feb 20237.057.41
1 Jan 20236.977.84
1 Dec 20227.058.11
1 Nov 20227.568.37
1 Oct 20226.829.14
1 Sep 20227.048.50
1 Aug 20226.148.26
1 Jul 20227.487.07
1 Jun 20227.147.08
1 May 20228.237.63
1 Apr 20227.527.88
1 Mar 20227.788.41
1 Feb 20227.078.30
1 Jan 20226.367.42
1 Dec 20215.696.94
1 Nov 20216.075.96
1 Oct 20217.356.26
1 Sep 20216.936.88
1 Aug 20216.957.33
1 Jul 20216.468.16
Month Piperacillin with tazobactam (Watch)
1 Jul 20265.22
1 Jun 20265.88
1 May 20265.07
1 Apr 20266.95
1 Mar 20266.62
1 Feb 20267.85
1 Jan 20267.19
1 Dec 20257.12
1 Nov 20256.48
1 Oct 20256.67
1 Sep 20257.52
1 Aug 20257.80
1 Jul 20257.00
1 Jun 20256.90
1 May 20257.51
1 Apr 20258.17
1 Mar 20257.55
1 Feb 20257.37
1 Jan 20257.85
1 Dec 20248.47
1 Nov 20249.21
1 Oct 20248.72
1 Sep 20248.08
1 Aug 20247.49
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 20236.57
1 Sep 20236.56
1 Aug 20237.61
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 20228.51
1 Oct 20228.00
1 Sep 20227.72
1 Aug 20226.78
1 Jul 20227.55
1 Jun 20227.41
1 May 20228.02
1 Apr 20228.02
1 Mar 20228.88
1 Feb 20228.19
1 Jan 20227.08
1 Dec 20217.37
1 Nov 20217.60
1 Oct 20219.23
1 Sep 20218.56
1 Aug 20219.12
1 Jul 20217.57
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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 Jul 2026

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 2021 to 01 July 2026. It fell from 230.33 on 01 July 2021 to 221.33 on 01 May 2022. It rose from 223.0 on 01 June 2022 to 234.67 on 01 March 2023. It fell from 229.0 on 01 April 2023 to 224.33 on 01 January 2024. It rose from 223.33 on 01 February 2024 to 271.33 on 01 November 2024. It rose from 253.0 on 01 December 2024 to 281.33 on 01 September 2025. And finally. It fell from 276.67 on 01 October 2025 to 243.67 on 01 July 2026. 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 month of 1 Jul 2026

Month Number tested
1 Jul 2026243.67
1 Jun 2026215.00
1 May 2026215.00
1 Apr 2026218.00
1 Mar 2026229.33
1 Feb 2026238.00
1 Jan 2026252.00
1 Dec 2025268.67
1 Nov 2025279.00
1 Oct 2025276.67
1 Sep 2025281.33
1 Aug 2025262.00
1 Jul 2025246.67
1 Jun 2025225.00
1 May 2025222.00
1 Apr 2025208.33
1 Mar 2025214.00
1 Feb 2025219.33
1 Jan 2025234.33
1 Dec 2024253.00
1 Nov 2024271.33
1 Oct 2024287.33
1 Sep 2024278.00
1 Aug 2024255.67
1 Jul 2024238.33
1 Jun 2024232.67
1 May 2024219.67
1 Apr 2024225.00
1 Mar 2024214.67
1 Feb 2024223.33
1 Jan 2024224.33
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 2023229.00
1 Mar 2023234.67
1 Feb 2023243.67
1 Jan 2023255.33
1 Dec 2022266.33
1 Nov 2022272.33
1 Oct 2022274.33
1 Sep 2022254.67
1 Aug 2022236.67
1 Jul 2022226.33
1 Jun 2022223.00
1 May 2022221.33
1 Apr 2022208.33
1 Mar 2022211.00
1 Feb 2022214.67
1 Jan 2022233.33
1 Dec 2021245.67
1 Nov 2021258.67
1 Oct 2021276.33
1 Sep 2021272.00
1 Aug 2021260.67
1 Jul 2021230.33
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About

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

Testing

Rolling monthly average percent of 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 Jul 2026

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 2021 to 01 July 2026. It rose from 67.65 on 01 July 2021 to 73.91 on 01 May 2022. It fell from 74.33 on 01 June 2022 to 74.29 on 01 March 2023. It fell from 74.11 on 01 April 2023 to 71.11 on 01 January 2024. It rose from 71.25 on 01 February 2024 to 73.05 on 01 November 2024. It fell from 70.87 on 01 December 2024 to 67.06 on 01 September 2025. And finally. It rose from 66.99 on 01 October 2025 to 67.69 on 01 July 2026. 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 month of 1 Jul 2026

Month % tested
1 Jul 202667.69
1 Jun 202667.82
1 May 202667.61
1 Apr 202670.10
1 Mar 202669.82
1 Feb 202668.99
1 Jan 202667.20
1 Dec 202567.68
1 Nov 202568.05
1 Oct 202566.99
1 Sep 202567.06
1 Aug 202567.01
1 Jul 202569.10
1 Jun 202567.98
1 May 202569.81
1 Apr 202569.10
1 Mar 202572.79
1 Feb 202570.87
1 Jan 202571.12
1 Dec 202470.87
1 Nov 202473.05
1 Oct 202473.40
1 Sep 202474.73
1 Aug 202472.03
1 Jul 202471.69
1 Jun 202471.60
1 May 202472.04
1 Apr 202473.05
1 Mar 202470.39
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 202374.11
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 202268.28
1 Aug 202268.41
1 Jul 202271.07
1 Jun 202274.33
1 May 202273.91
1 Apr 202274.02
1 Mar 202273.78
1 Feb 202273.29
1 Jan 202274.44
1 Dec 202173.35
1 Nov 202172.88
1 Oct 202171.32
1 Sep 202169.21
1 Aug 202168.60
1 Jul 202167.65
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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 Jul 2026

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 2021 to 01 July 2026. It rose from 0.87 on 01 July 2021 to 1.2 on 01 May 2022. It fell from 0.75 on 01 June 2022 to 0.57 on 01 March 2023. It rose from 0.87 on 01 April 2023 to 1.49 on 01 January 2024. It rose from 1.04 on 01 February 2024 to 1.35 on 01 November 2024. It fell from 1.58 on 01 December 2024 to 0.95 on 01 September 2025. And finally. It fell from 0.84 on 01 October 2025 to 0.68 on 01 July 2026. 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 month of 1 Jul 2026

Month % resistant
1 Jul 20260.68
1 Jun 20260.62
1 May 20260.47
1 Apr 20260.61
1 Mar 20260.73
1 Feb 20261.12
1 Jan 20261.06
1 Dec 20250.99
1 Nov 20250.84
1 Oct 20250.84
1 Sep 20250.95
1 Aug 20250.76
1 Jul 20250.68
1 Jun 20250.44
1 May 20251.20
1 Apr 20251.28
1 Mar 20251.40
1 Feb 20251.52
1 Jan 20251.28
1 Dec 20241.58
1 Nov 20241.35
1 Oct 20241.51
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 20241.49
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 20220.75
1 May 20221.20
1 Apr 20221.28
1 Mar 20221.58
1 Feb 20221.24
1 Jan 20221.57
1 Dec 20210.95
1 Nov 20211.29
1 Oct 20211.09
1 Sep 20211.23
1 Aug 20210.77
1 Jul 20210.87
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About

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

Carbapenems

Testing

Rolling monthly average number of 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 Jul 2026

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 2021 to 01 July 2026. It fell from 325.33 on 01 July 2021 to 290.0 on 01 May 2022. It rose from 292.0 on 01 June 2022 to 300.67 on 01 March 2023. It rose from 294.33 on 01 April 2023 to 298.33 on 01 January 2024. It rose from 297.67 on 01 February 2024 to 353.0 on 01 November 2024. It rose from 341.33 on 01 December 2024 to 392.33 on 01 September 2025. And finally. It fell from 387.0 on 01 October 2025 to 328.67 on 01 July 2026. 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 month of 1 Jul 2026

Month Number tested
1 Jul 2026328.67
1 Jun 2026289.00
1 May 2026290.67
1 Apr 2026286.67
1 Mar 2026306.00
1 Feb 2026317.33
1 Jan 2026341.00
1 Dec 2025360.00
1 Nov 2025378.33
1 Oct 2025387.00
1 Sep 2025392.33
1 Aug 2025360.00
1 Jul 2025326.33
1 Jun 2025305.00
1 May 2025299.33
1 Apr 2025282.33
1 Mar 2025276.33
1 Feb 2025289.67
1 Jan 2025312.00
1 Dec 2024341.33
1 Nov 2024353.00
1 Oct 2024370.00
1 Sep 2024350.67
1 Aug 2024337.00
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 2022372.33
1 Oct 2022378.00
1 Sep 2022355.33
1 Aug 2022331.67
1 Jul 2022307.00
1 Jun 2022292.00
1 May 2022290.00
1 Apr 2022273.67
1 Mar 2022277.33
1 Feb 2022280.00
1 Jan 2022302.00
1 Dec 2021323.00
1 Nov 2021342.00
1 Oct 2021371.33
1 Sep 2021375.33
1 Aug 2021363.67
1 Jul 2021325.33
Download

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About

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

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 Jul 2026

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 2021 to 01 July 2026. It rose from 95.59 on 01 July 2021 to 96.99 on 01 May 2022. It fell from 97.33 on 01 June 2022 to 95.24 on 01 March 2023. It fell from 95.15 on 01 April 2023 to 94.6 on 01 January 2024. It rose from 94.89 on 01 February 2024 to 95.15 on 01 November 2024. It fell from 95.52 on 01 December 2024 to 93.56 on 01 September 2025. And finally. It fell from 93.93 on 01 October 2025 to 91.36 on 01 July 2026. 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 month of 1 Jul 2026

Month % tested
1 Jul 202691.36
1 Jun 202691.17
1 May 202691.19
1 Apr 202691.96
1 Mar 202693.29
1 Feb 202691.88
1 Jan 202690.93
1 Dec 202590.91
1 Nov 202592.20
1 Oct 202593.93
1 Sep 202593.56
1 Aug 202592.07
1 Jul 202591.57
1 Jun 202592.15
1 May 202594.03
1 Apr 202593.69
1 Mar 202593.88
1 Feb 202593.53
1 Jan 202594.83
1 Dec 202495.52
1 Nov 202495.15
1 Oct 202494.63
1 Sep 202494.09
1 Aug 202495.20
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 202395.15
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 202295.43
1 Aug 202295.94
1 Jul 202296.54
1 Jun 202297.33
1 May 202296.99
1 Apr 202297.15
1 Mar 202296.85
1 Feb 202295.89
1 Jan 202296.49
1 Dec 202196.71
1 Nov 202196.61
1 Oct 202195.87
1 Sep 202195.42
1 Aug 202195.78
1 Jul 202195.59
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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 Jul 2026

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 2021 to 01 July 2026. It rose from 8.3 on 01 July 2021 to 8.39 on 01 May 2022. It rose from 8.11 on 01 June 2022 to 9.87 on 01 March 2023. It fell from 9.85 on 01 April 2023 to 7.37 on 01 January 2024. It rose from 7.17 on 01 February 2024 to 8.03 on 01 November 2024. It fell from 7.03 on 01 December 2024 to 6.97 on 01 September 2025. And finally. It fell from 7.06 on 01 October 2025 to 6.49 on 01 July 2026. 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 month of 1 Jul 2026

Month % resistant
1 Jul 20266.49
1 Jun 20267.15
1 May 20266.88
1 Apr 20267.79
1 Mar 20267.63
1 Feb 20269.14
1 Jan 20267.82
1 Dec 20257.13
1 Nov 20255.64
1 Oct 20257.06
1 Sep 20256.97
1 Aug 20258.15
1 Jul 20257.15
1 Jun 20257.10
1 May 20257.13
1 Apr 20257.20
1 Mar 20257.36
1 Feb 20257.13
1 Jan 20256.30
1 Dec 20247.03
1 Nov 20248.03
1 Oct 20248.65
1 Sep 20248.17
1 Aug 20246.13
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 20226.44
1 Sep 20227.04
1 Aug 20227.34
1 Jul 20228.25
1 Jun 20228.11
1 May 20228.39
1 Apr 20228.16
1 Mar 20228.89
1 Feb 20228.93
1 Jan 20229.05
1 Dec 20218.36
1 Nov 20218.77
1 Oct 20218.80
1 Sep 20218.79
1 Aug 20218.25
1 Jul 20218.30
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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 Jul 2026

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 2021 to 01 July 2026. It fell from 314.67 on 01 July 2021 to 287.67 on 01 May 2022. It rose from 289.33 on 01 June 2022 to 292.0 on 01 March 2023. It rose from 287.33 on 01 April 2023 to 290.67 on 01 January 2024. It rose from 288.33 on 01 February 2024 to 340.67 on 01 November 2024. It rose from 326.0 on 01 December 2024 to 381.0 on 01 September 2025. And finally. It fell from 372.67 on 01 October 2025 to 320.0 on 01 July 2026. 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 month of 1 Jul 2026

Month Number tested
1 Jul 2026320.00
1 Jun 2026280.33
1 May 2026280.00
1 Apr 2026276.00
1 Mar 2026288.33
1 Feb 2026303.33
1 Jan 2026330.67
1 Dec 2025350.33
1 Nov 2025368.00
1 Oct 2025372.67
1 Sep 2025381.00
1 Aug 2025353.33
1 Jul 2025322.00
1 Jun 2025302.67
1 May 2025289.67
1 Apr 2025272.00
1 Mar 2025265.33
1 Feb 2025279.67
1 Jan 2025302.67
1 Dec 2024326.00
1 Nov 2024340.67
1 Oct 2024356.33
1 Sep 2024341.33
1 Aug 2024323.33
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 2022361.67
1 Oct 2022366.33
1 Sep 2022345.67
1 Aug 2022325.67
1 Jul 2022303.00
1 Jun 2022289.33
1 May 2022287.67
1 Apr 2022270.33
1 Mar 2022274.33
1 Feb 2022278.00
1 Jan 2022298.67
1 Dec 2021316.33
1 Nov 2021335.00
1 Oct 2021362.67
1 Sep 2021365.33
1 Aug 2021350.00
1 Jul 2021314.67
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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 Jul 2026

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 2021 to 01 July 2026. It rose from 92.35 on 01 July 2021 to 95.99 on 01 May 2022. It fell from 96.33 on 01 June 2022 to 92.7 on 01 March 2023. It fell from 92.88 on 01 April 2023 to 92.06 on 01 January 2024. It fell from 92.01 on 01 February 2024 to 91.64 on 01 November 2024. It fell from 91.32 on 01 December 2024 to 90.93 on 01 September 2025. And finally. It fell from 90.29 on 01 October 2025 to 89.14 on 01 July 2026. 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 month of 1 Jul 2026

Month % tested
1 Jul 202689.14
1 Jun 202688.33
1 May 202688.05
1 Apr 202688.75
1 Mar 202687.80
1 Feb 202687.83
1 Jan 202688.00
1 Dec 202588.38
1 Nov 202589.76
1 Oct 202590.29
1 Sep 202590.93
1 Aug 202590.28
1 Jul 202590.45
1 Jun 202591.24
1 May 202590.88
1 Apr 202590.37
1 Mar 202590.14
1 Feb 202590.29
1 Jan 202591.79
1 Dec 202491.32
1 Nov 202491.64
1 Oct 202491.05
1 Sep 202491.67
1 Aug 202491.24
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 202392.88
1 Mar 202392.70
1 Feb 202392.55
1 Jan 202393.39
1 Dec 202294.01
1 Nov 202293.28
1 Oct 202292.89
1 Sep 202292.74
1 Aug 202294.20
1 Jul 202295.28
1 Jun 202296.33
1 May 202295.99
1 Apr 202296.09
1 Mar 202295.80
1 Feb 202295.21
1 Jan 202295.21
1 Dec 202194.61
1 Nov 202194.63
1 Oct 202193.54
1 Sep 202192.88
1 Aug 202192.35
1 Jul 202192.35
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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 Jul 2026

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 2021 to 01 July 2026. It rose from 6.46 on 01 July 2021 to 8.23 on 01 May 2022. It rose from 7.14 on 01 June 2022 to 8.56 on 01 March 2023. It fell from 8.58 on 01 April 2023 to 5.05 on 01 January 2024. It rose from 4.16 on 01 February 2024 to 6.16 on 01 November 2024. It fell from 6.13 on 01 December 2024 to 6.12 on 01 September 2025. And finally. It fell from 4.92 on 01 October 2025 to 4.06 on 01 July 2026. 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 month of 1 Jul 2026

Month % resistant
1 Jul 20264.06
1 Jun 20264.52
1 May 20264.52
1 Apr 20266.16
1 Mar 20265.78
1 Feb 20266.92
1 Jan 20266.35
1 Dec 20256.18
1 Nov 20255.34
1 Oct 20254.92
1 Sep 20256.12
1 Aug 20256.32
1 Jul 20257.04
1 Jun 20256.39
1 May 20256.79
1 Apr 20256.37
1 Mar 20255.90
1 Feb 20256.79
1 Jan 20256.39
1 Dec 20246.13
1 Nov 20246.16
1 Oct 20246.64
1 Sep 20247.03
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 20227.56
1 Oct 20226.82
1 Sep 20227.04
1 Aug 20226.14
1 Jul 20227.48
1 Jun 20227.14
1 May 20228.23
1 Apr 20227.52
1 Mar 20227.78
1 Feb 20227.07
1 Jan 20226.36
1 Dec 20215.69
1 Nov 20216.07
1 Oct 20217.35
1 Sep 20216.93
1 Aug 20216.95
1 Jul 20216.46
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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 Jul 2026

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 2021 to 01 July 2026. It fell from 322.67 on 01 July 2021 to 288.33 on 01 May 2022. It rose from 287.33 on 01 June 2022 to 296.0 on 01 March 2023. It rose from 288.67 on 01 April 2023 to 293.67 on 01 January 2024. It rose from 292.33 on 01 February 2024 to 340.33 on 01 November 2024. It rose from 325.67 on 01 December 2024 to 380.0 on 01 September 2025. And finally. It fell from 372.67 on 01 October 2025 to 324.67 on 01 July 2026. 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 month of 1 Jul 2026

Month Number tested
1 Jul 2026324.67
1 Jun 2026281.00
1 May 2026281.00
1 Apr 2026273.33
1 Mar 2026294.33
1 Feb 2026311.33
1 Jan 2026344.00
1 Dec 2025361.33
1 Nov 2025373.67
1 Oct 2025372.67
1 Sep 2025380.00
1 Aug 2025351.67
1 Jul 2025323.00
1 Jun 2025301.00
1 May 2025294.67
1 Apr 2025275.33
1 Mar 2025272.00
1 Feb 2025281.00
1 Jan 2025301.00
1 Dec 2024325.67
1 Nov 2024340.33
1 Oct 2024356.67
1 Sep 2024335.00
1 Aug 2024318.33
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 2023324.67
1 Jun 2023313.00
1 May 2023300.33
1 Apr 2023288.67
1 Mar 2023296.00
1 Feb 2023301.33
1 Jan 2023327.33
1 Dec 2022349.33
1 Nov 2022370.33
1 Oct 2022375.67
1 Sep 2022356.67
1 Aug 2022331.00
1 Jul 2022306.67
1 Jun 2022287.33
1 May 2022288.33
1 Apr 2022270.67
1 Mar 2022277.33
1 Feb 2022281.00
1 Jan 2022301.00
1 Dec 2021322.00
1 Nov 2021341.00
1 Oct 2021373.00
1 Sep 2021377.67
1 Aug 2021364.00
1 Jul 2021322.67
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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 Jul 2026

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 2021 to 01 July 2026. It rose from 94.71 on 01 July 2021 to 96.32 on 01 May 2022. It fell from 95.67 on 01 June 2022 to 93.97 on 01 March 2023. It fell from 93.2 on 01 April 2023 to 93.02 on 01 January 2024. It fell from 93.29 on 01 February 2024 to 91.64 on 01 November 2024. It fell from 91.04 on 01 December 2024 to 90.69 on 01 September 2025. And finally. It fell from 90.29 on 01 October 2025 to 90.25 on 01 July 2026. 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 month of 1 Jul 2026

Month % tested
1 Jul 202690.25
1 Jun 202688.64
1 May 202688.36
1 Apr 202687.78
1 Mar 202689.63
1 Feb 202690.14
1 Jan 202691.73
1 Dec 202591.16
1 Nov 202590.98
1 Oct 202590.29
1 Sep 202590.69
1 Aug 202589.77
1 Jul 202590.73
1 Jun 202590.94
1 May 202592.45
1 Apr 202591.36
1 Mar 202592.52
1 Feb 202590.94
1 Jan 202591.49
1 Dec 202491.04
1 Nov 202491.64
1 Oct 202491.05
1 Sep 202490.05
1 Aug 202489.83
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 202393.91
1 Jun 202393.71
1 May 202393.46
1 Apr 202393.20
1 Mar 202393.97
1 Feb 202393.48
1 Jan 202393.97
1 Dec 202295.10
1 Nov 202295.61
1 Oct 202295.18
1 Sep 202295.70
1 Aug 202295.94
1 Jul 202296.23
1 Jun 202295.67
1 May 202296.32
1 Apr 202296.09
1 Mar 202296.85
1 Feb 202296.23
1 Jan 202296.17
1 Dec 202196.41
1 Nov 202196.33
1 Oct 202196.38
1 Sep 202195.93
1 Aug 202196.04
1 Jul 202194.71
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About

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

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 Jul 2026

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 2021 to 01 July 2026. It fell from 8.16 on 01 July 2021 to 7.63 on 01 May 2022. It rose from 7.08 on 01 June 2022 to 7.55 on 01 March 2023. It fell from 7.62 on 01 April 2023 to 7.6 on 01 January 2024. It rose from 7.07 on 01 February 2024 to 8.23 on 01 November 2024. It fell from 9.42 on 01 December 2024 to 5.7 on 01 September 2025. And finally. It rose from 6.44 on 01 October 2025 to 7.08 on 01 July 2026. 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 month of 1 Jul 2026

Month % resistant
1 Jul 20267.08
1 Jun 20267.35
1 May 20267.24
1 Apr 20268.41
1 Mar 20267.93
1 Feb 20267.17
1 Jan 20266.98
1 Dec 20257.10
1 Nov 20257.05
1 Oct 20256.44
1 Sep 20255.70
1 Aug 20255.69
1 Jul 20256.50
1 Jun 20257.97
1 May 20258.71
1 Apr 20258.47
1 Mar 20258.33
1 Feb 20259.73
1 Jan 20259.97
1 Dec 20249.42
1 Nov 20248.23
1 Oct 20247.57
1 Sep 20247.76
1 Aug 20247.43
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 20237.80
1 Jun 20238.84
1 May 20239.21
1 Apr 20237.62
1 Mar 20237.55
1 Feb 20237.41
1 Jan 20237.84
1 Dec 20228.11
1 Nov 20228.37
1 Oct 20229.14
1 Sep 20228.50
1 Aug 20228.26
1 Jul 20227.07
1 Jun 20227.08
1 May 20227.63
1 Apr 20227.88
1 Mar 20228.41
1 Feb 20228.30
1 Jan 20227.42
1 Dec 20216.94
1 Nov 20215.96
1 Oct 20216.26
1 Sep 20216.88
1 Aug 20217.33
1 Jul 20218.16
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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 Jul 2026

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 2021 to 01 July 2026. It fell from 312.67 on 01 July 2021 to 270.0 on 01 May 2022. It rose from 274.33 on 01 June 2022 to 281.67 on 01 March 2023. It rose from 276.0 on 01 April 2023 to 277.0 on 01 January 2024. It rose from 279.67 on 01 February 2024 to 340.33 on 01 November 2024. It rose from 330.67 on 01 December 2024 to 376.67 on 01 September 2025. And finally. It fell from 370.0 on 01 October 2025 to 319.33 on 01 July 2026. 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 month of 1 Jul 2026

Month Number tested
1 Jul 2026319.33
1 Jun 2026283.67
1 May 2026282.67
1 Apr 2026278.33
1 Mar 2026292.00
1 Feb 2026310.00
1 Jan 2026338.33
1 Dec 2025356.00
1 Nov 2025370.33
1 Oct 2025370.00
1 Sep 2025376.67
1 Aug 2025350.33
1 Jul 2025319.00
1 Jun 2025299.33
1 May 2025288.67
1 Apr 2025273.33
1 Mar 2025265.00
1 Feb 2025280.33
1 Jan 2025301.67
1 Dec 2024330.67
1 Nov 2024340.33
1 Oct 2024348.00
1 Sep 2024326.00
1 Aug 2024307.00
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 2023330.00
1 Sep 2023320.33
1 Aug 2023315.33
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 2022348.67
1 Oct 2022354.33
1 Sep 2022336.67
1 Aug 2022314.67
1 Jul 2022291.33
1 Jun 2022274.33
1 May 2022270.00
1 Apr 2022257.67
1 Mar 2022262.67
1 Feb 2022268.67
1 Jan 2022287.00
1 Dec 2021307.67
1 Nov 2021324.67
1 Oct 2021354.00
1 Sep 2021358.33
1 Aug 2021347.33
1 Jul 2021312.67
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About

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

Testing

Rolling monthly average percent of 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 Jul 2026

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 2021 to 01 July 2026. It fell from 91.76 on 01 July 2021 to 90.3 on 01 May 2022. It fell from 91.33 on 01 June 2022 to 89.21 on 01 March 2023. It fell from 89.32 on 01 April 2023 to 87.94 on 01 January 2024. It rose from 89.14 on 01 February 2024 to 91.64 on 01 November 2024. It fell from 92.44 on 01 December 2024 to 89.74 on 01 September 2025. And finally. It fell from 89.81 on 01 October 2025 to 88.86 on 01 July 2026. 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 month of 1 Jul 2026

Month % tested
1 Jul 202688.86
1 Jun 202689.27
1 May 202688.68
1 Apr 202689.39
1 Mar 202689.02
1 Feb 202689.86
1 Jan 202690.13
1 Dec 202589.90
1 Nov 202590.24
1 Oct 202589.81
1 Sep 202589.74
1 Aug 202589.51
1 Jul 202589.61
1 Jun 202590.33
1 May 202590.57
1 Apr 202590.70
1 Mar 202590.14
1 Feb 202590.61
1 Jan 202591.49
1 Dec 202492.44
1 Nov 202491.64
1 Oct 202489.00
1 Sep 202487.63
1 Aug 202486.72
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 202389.32
1 Mar 202389.21
1 Feb 202389.75
1 Jan 202389.37
1 Dec 202289.65
1 Nov 202289.92
1 Oct 202289.85
1 Sep 202290.32
1 Aug 202291.01
1 Jul 202291.51
1 Jun 202291.33
1 May 202290.30
1 Apr 202291.46
1 Mar 202291.61
1 Feb 202291.78
1 Jan 202291.69
1 Dec 202191.92
1 Nov 202191.53
1 Oct 202191.47
1 Sep 202191.09
1 Aug 202191.56
1 Jul 202191.76
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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 Jul 2026

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 2021 to 01 July 2026. It rose from 7.57 on 01 July 2021 to 8.02 on 01 May 2022. It rose from 7.41 on 01 June 2022 to 8.64 on 01 March 2023. It fell from 10.02 on 01 April 2023 to 5.9 on 01 January 2024. It rose from 5.24 on 01 February 2024 to 9.21 on 01 November 2024. It fell from 8.47 on 01 December 2024 to 7.52 on 01 September 2025. And finally. It fell from 6.67 on 01 October 2025 to 5.22 on 01 July 2026. 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 month of 1 Jul 2026

Month % resistant
1 Jul 20265.22
1 Jun 20265.88
1 May 20265.07
1 Apr 20266.95
1 Mar 20266.62
1 Feb 20267.85
1 Jan 20267.19
1 Dec 20257.12
1 Nov 20256.48
1 Oct 20256.67
1 Sep 20257.52
1 Aug 20257.80
1 Jul 20257.00
1 Jun 20256.90
1 May 20257.51
1 Apr 20258.17
1 Mar 20257.55
1 Feb 20257.37
1 Jan 20257.85
1 Dec 20248.47
1 Nov 20249.21
1 Oct 20248.72
1 Sep 20248.08
1 Aug 20247.49
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 20236.57
1 Sep 20236.56
1 Aug 20237.61
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 20228.51
1 Oct 20228.00
1 Sep 20227.72
1 Aug 20226.78
1 Jul 20227.55
1 Jun 20227.41
1 May 20228.02
1 Apr 20228.02
1 Mar 20228.88
1 Feb 20228.19
1 Jan 20227.08
1 Dec 20217.37
1 Nov 20217.60
1 Oct 20219.23
1 Sep 20218.56
1 Aug 20219.12
1 Jul 20217.57
Download

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About

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

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