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Entry title:

Measles

Last updated on Thursday, 5 June 2025 at 09:30am

Measles is a viral infectious disease. This page provides information about measles cases in England.

Cases are confirmed through either local or reference laboratory testing.

Numbers shown here are provisional and subject to change as:

  • more suspected cases undergo confirmatory testing
  • some locally tested cases are discarded after obtaining further epidemiological information or undergoing confirmatory testing at the reference laboratory

We update measles data every month. The next update will be on Thursday 3 July at 9.30am.

Headlines

Cases

Since January 2025
Up to and including week beginning 26 May 2025
420

Cases

In the past 4 weeks
Up to and including week beginning 26 May 2025
75

Since 1 January 2025, there have been 420 laboratory confirmed measles cases reported in England.

39% (162 of 420) of these cases have been in London, 14% (58 of 420) in the South West, and 14% (57 of 420) in East of England. 82 out of 152 upper tier local authorities (UTLAs) have reported at least one confirmed case with symptom onset since January 2025, with the highest numbers reported in Bristol (47 of 420, 11%), Leeds (29 of 420, 7%) and Newham (23 of 420, 5%).

In 2024 there were 2,911 laboratory confirmed measles cases in England, the highest number of cases recorded annually, since 2012. This was initially driven by an outbreak in Birmingham but was soon overtaken by a large outbreak in London, with small clusters in other regions. Case counts followed a downward trajectory from mid-July with small, localised outbreaks continuing in some regions. Data for 2024 can be found here.

Percent cases in England by age group (in years), since January 2025

Cases under 1 year of age are assigned to the 00-01 age group.

Up to and including week beginning 26 May 2025

ChartThere are 7 plots on this chart. The horizontal X-axis is labelled 'age'. Whilst the vertical Y-axis is labelled 'metric'. This is plot number 1 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesAgePercent' for the England area, along with the age banding of '00-01' for the gender group of all. This plot shows `00 - 01` along the X-axis. And `14.0000` along the Y-axis. This is plot number 2 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesAgePercent' for the England area, along with the age banding of '01-04' for the gender group of all. This plot shows `01 - 04` along the X-axis. And `30.2000` along the Y-axis. This is plot number 3 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesAgePercent' for the England area, along with the age banding of '05-10' for the gender group of all. This plot shows `05 - 10` along the X-axis. And `21.4000` along the Y-axis. This is plot number 4 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesAgePercent' for the England area, along with the age banding of '11-14' for the gender group of all. This plot shows `11 - 14` along the X-axis. And `5.5000` along the Y-axis. This is plot number 5 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesAgePercent' for the England area, along with the age banding of '15-24' for the gender group of all. This plot shows `15 - 24` along the X-axis. And `10.7000` along the Y-axis. This is plot number 6 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesAgePercent' for the England area, along with the age banding of '25-34' for the gender group of all. This plot shows `25 - 34` along the X-axis. And `10.2000` along the Y-axis. This is plot number 7 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesAgePercent' for the England area, along with the age banding of '35+' for the gender group of all. This plot shows `35+` along the X-axis. And `7.9000` along the Y-axis. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Percent cases in England by age group (in years), since January 2025 data for cases under 1 year of age are assigned to the 00-01 age group.

Up to and including 26 May 2025

Age group (years)Percent of cases
00 - 0114.00
01 - 0430.20
05 - 1021.40
11 - 145.50
15 - 2410.70
25 - 3410.20
35+7.90
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Percent cases in England by UKHSA Region, since January 2025

Up to and including week beginning 26 May 2025

ChartThere are 9 plots on this chart. The horizontal X-axis is labelled 'geography'. Whilst the vertical Y-axis is labelled 'metric'. This is plot number 1 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the East Midlands area, along with the age banding of 'all' for the gender group of all. This plot shows `East Midlands` along the X-axis. And `4.5000` along the Y-axis. This is plot number 2 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the East of England area, along with the age banding of 'all' for the gender group of all. This plot shows `East of England` along the X-axis. And `13.6000` along the Y-axis. This is plot number 3 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the London area, along with the age banding of 'all' for the gender group of all. This plot shows `London` along the X-axis. And `38.6000` along the Y-axis. This is plot number 4 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the North East area, along with the age banding of 'all' for the gender group of all. This plot shows `North East` along the X-axis. And `1.4000` along the Y-axis. This is plot number 5 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the North West area, along with the age banding of 'all' for the gender group of all. This plot shows `North West` along the X-axis. And `10.7000` along the Y-axis. This is plot number 6 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the South East area, along with the age banding of 'all' for the gender group of all. This plot shows `South East` along the X-axis. And `3.8000` along the Y-axis. This is plot number 7 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the South West area, along with the age banding of 'all' for the gender group of all. This plot shows `South West` along the X-axis. And `13.8000` along the Y-axis. This is plot number 8 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the West Midlands area, along with the age banding of 'all' for the gender group of all. This plot shows `West Midlands` along the X-axis. And `5.0000` along the Y-axis. This is plot number 9 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesRegionPercent' for the Yorkshire and Humber area, along with the age banding of 'all' for the gender group of all. This plot shows `Yorkshire and Humber` along the X-axis. And `8.6000` along the Y-axis. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Percent cases in England by UKHSA Region, since January 2025 data for

Up to and including 26 May 2025

UKHSA regionPercent of cases
East Midlands4.50
East of England13.60
London38.60
North East1.40
North West10.70
South East3.80
South West13.80
West Midlands5.00
Yorkshire and Humber8.60
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Number of cases in England by upper tier local authority, since January 2025

The upper tier local authorities with the highest number of cumulative measles cases in the reporting period are included in this chart.

Up to and including week beginning 26 May 2025

ChartThere are 7 plots on this chart. The horizontal X-axis is labelled 'geography'. Whilst the vertical Y-axis is labelled 'metric'. This is plot number 1 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesIncident' for the Bristol, City of area, along with the age banding of 'all' for the gender group of all. This plot shows `Bristol, City of` along the X-axis. And `47.0000` along the Y-axis. This is plot number 2 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesIncident' for the Leeds area, along with the age banding of 'all' for the gender group of all. This plot shows `Leeds` along the X-axis. And `29.0000` along the Y-axis. This is plot number 3 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesIncident' for the Newham area, along with the age banding of 'all' for the gender group of all. This plot shows `Newham` along the X-axis. And `23.0000` along the Y-axis. This is plot number 4 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesIncident' for the Essex area, along with the age banding of 'all' for the gender group of all. This plot shows `Essex` along the X-axis. And `22.0000` along the Y-axis. This is plot number 5 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesIncident' for the Hertfordshire area, along with the age banding of 'all' for the gender group of all. This plot shows `Hertfordshire` along the X-axis. And `18.0000` along the Y-axis. This is plot number 6 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesIncident' for the Waltham Forest area, along with the age banding of 'all' for the gender group of all. This plot shows `Waltham Forest` along the X-axis. And `18.0000` along the Y-axis. This is plot number 7 on this chart. This is a dark blue solid bar plot. This plot shows data for Measles. Specifically the metric 'measles_headline_cumulativeCasesIncident' for the Salford area, along with the age banding of 'all' for the gender group of all. This plot shows `Salford` along the X-axis. And `15.0000` along the Y-axis. There is no reporting delay period being tracked for the data on this chart. - Refer to tabular data.
Tabular data

Number of cases in England by upper tier local authority, since January 2025 data for the upper tier local authorities with the highest number of cumulative measles cases in the reporting period are included in this chart.

Up to and including 26 May 2025

Upper Tier Local AuthorityNumber of cases
Bristol, City of47.00
Leeds29.00
Newham23.00
Essex22.00
Hertfordshire18.00
Waltham Forest18.00
Salford15.00
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Trends

Cases by week of symptom onset

Laboratory confirmed cases of measles by week of onset of rash or symptoms reported, London and England from 1 January 2025. The data reporting lag has greatest impact on the most recent 4 weeks. Reported figures for this period are likely to underestimate activity. These data points are within the "reporting delay" period on the chart. This chart is different to the measles "cases reported" chart on the landing page. Data affected by the reporting delay is not included in the chart on the landing page.

Up to and including week beginning 26 May 2025

ChartThere are 2 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 'England'. This plot shows data for Measles. Specifically the metric 'measles_cases_casesByOnsetWeek' for the England area, along with the age banding of 'all' for the gender group of all. This plot shows data from 30 December 2024 to 26 May 2025. It rose from 15.0 on 30 December 2024 to 24.0 on 20 January 2025. It rose from 14.0 on 27 January 2025 to 16.0 on 17 February 2025. It fell from 17.0 on 24 February 2025 to 16.0 on 17 March 2025. It rose from 15.0 on 24 March 2025 to 31.0 on 14 April 2025. It rose from 20.0 on 21 April 2025 to 27.0 on 05 May 2025. And finally. It fell from 19.0 on 12 May 2025 to 8.0 on 26 May 2025. This is plot number 2 on this chart. This is a turquoise solid line plot. The plot has a label of 'London'. This plot shows data for Measles. Specifically the metric 'measles_cases_casesByOnsetWeek' for the London area, along with the age banding of 'all' for the gender group of all. This plot shows data from 30 December 2024 to 26 May 2025. It rose from 3.0 on 30 December 2024 to 4.0 on 20 January 2025. It rose from 2.0 on 27 January 2025 to 5.0 on 17 February 2025. It rose from 3.0 on 24 February 2025 to 10.0 on 17 March 2025. It rose from 7.0 on 24 March 2025 to 17.0 on 14 April 2025. It fell from 14.0 on 21 April 2025 to 13.0 on 05 May 2025. And finally. It fell from 7.0 on 12 May 2025 to 4.0 on 26 May 2025. Data from 05 May 2025 onwards falls under the reporting delay period. This means those figures are still subject to retrospective updates and should therefore not be considered to be final. - Refer to tabular data.
Tabular data

Cases by week of symptom onset data for laboratory confirmed cases of measles by week of onset of rash or symptoms reported, London and England from 1 January 2025.

The data reporting lag has greatest impact on the most recent 4 weeks. Reported figures for this period are likely to underestimate activity. These data points are within the "reporting delay" period on the chart.

This chart is different to the measles "cases reported" chart on the landing page. Data affected by the reporting delay is not included in the chart on the landing page.

Up to and including 26 May 2025

Reporting delay period

Symptom onset dateEnglandLondon
26 May 20258.004.00
19 May 202521.0011.00
12 May 202519.007.00
5 May 202527.0013.00
28 Apr 202524.0013.00
21 Apr 202520.0014.00
14 Apr 202531.0017.00
7 Apr 202526.0012.00
31 Mar 202523.009.00
24 Mar 202515.007.00
17 Mar 202516.0010.00
10 Mar 202512.007.00
3 Mar 202517.006.00
24 Feb 202517.003.00
17 Feb 202516.005.00
10 Feb 202517.003.00
3 Feb 202517.005.00
27 Jan 202514.002.00
20 Jan 202524.004.00
13 Jan 202522.005.00
6 Jan 202519.002.00
30 Dec 202415.003.00
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