There were 30 new cases reported in the four weeks from 16 December 2024 to 13 January 2025, contributing to a total of 115 laboratory-confirmed cases in the South West since January 2024.
Bristol has seen the highest number of cases, with 57 reported since the beginning of 2025, followed by Gloucestershire with 23 cases and Somerset with 11.
Vaccination rates across the South West for MMR doses show significant variation, with the region performing better overall than the national average but still falling short of the World Health Organization’s 95% target to prevent outbreaks.
In response to the rising numbers, the UK Health Security Agency (UKHSA) is calling on parents across the region to ensure their children are up to date with their MMR vaccinations.
While measles cases have been declining nationwide, the South West has seen a concerning spike, particularly among unvaccinated children and young people.
The UKHSA reports that the MMR vaccination rate for two doses across the region is lower than 90%, with even small drops in vaccine uptake below the WHO's 95% target leading to outbreaks.
“Measles has been circulating across the country over the last 12 months, with 115 laboratory-confirmed measles cases in the South West since 1 January 2024. The majority of these were confirmed in November and December 2024, and the rapid rise in cases within the region is concerning,” said Dr Alasdair Wood, Consultant in Health Protection for UKHSA South West.
“Measles is highly infectious, and it can cause serious disease or even death in some rare cases. If you suspect that you or a family member has measles, it is important to seek medical advice and stay away from schools, large gatherings, and workplaces while infectious,” Dr. Wood added. “People are infectious from four full days before and until four full days after the rash appears.”
Dr. Wood emphasized that those most at risk of severe infection include pregnant women, children under one year old, and immunocompromised individuals. “We all have a responsibility to help protect these groups by getting vaccinated and reducing the spread of the infection,” he said.
The MMR vaccine, which protects against measles, mumps, and rubella, is a safe and effective way to stop the spread of measles and protect this most vulnerable to infection, says the UK Health Security Agency.
UKHSA is urging anyone who has not received both doses of the vaccine to speak to their GP. “It’s never too late to get the vaccine, so if you’ve not received two doses in the past – or you’re unsure – speak to your GP,” said Dr. Wood. “There’s no harm in receiving an additional dose if there’s any uncertainty.”
The symptoms of measles include cold-like symptoms, sore red eyes, a high temperature, and a red-brown blotchy rash that typically starts on the head or upper neck before spreading.
Those who experience symptoms are encouraged to seek medical attention but to phone ahead to healthcare settings to prevent the spread of the virus.
For further information on measles symptoms and the MMR vaccine, visit NHS Measles Information and NHS MMRVaccine Information.
The UKHSA South West is also working closely with local authorities and NHS partners to manage the response to this outbreak and ensure the public is protected.
