The UK Health Security Agency (UKHSA) South West and Bristol City Council are urging parents across Bristol to look out for the signs and symptoms of measles and check their children’s MMR vaccination status this half term.

The message comes as data published by UKHSA shows that Bristol has had the highest number of confirmed measles cases so far this year out of all upper tier local authorities in the country.

Measles – described as a “highly contagious, serious airborne disease” by the WHO – has been circulating across the South West region for several months, but this more rapid rise in cases within the region is worrying, UKHSA said. The number of cases in Bristol so far in 2025 is already nearly half of the total number of cases the city had in 2024 (25 in 2025 compared to 53 in 2024).

Dr Toyin Ejidokun, consultant in health protection at UK Health Security Agency (UKHSA) South West said: “Measles is highly infectious, and it can cause serious disease or even death in some rare cases. This half term, we are urging parents to remain alert to the symptoms of measles, which can include cold-like symptoms, sore red eyes, a high temperature or a red-brown blotchy rash.

“If you experience these symptoms, seek medical attention, but please ensure that you phone ahead before visiting a healthcare setting, such as your GP surgery so that arrangements can be made to prevent others from being infected.”

Julie Northcott, deputy director of Public Health at Bristol City Council said: “Measles spreads very easily and quickly amongst those who are unvaccinated. One person infected by measles can infect nine out of 10 of their unvaccinated close contacts.

“The MMR vaccine is safe and by far the most effective way to protect yourself and those around you. Approximately 14.9% of 5-year-old children in Bristol have not had the MMR vaccination and so are currently not protected.

“It’s never too late to have the vaccine, so if you’ve not received two doses of the vaccine in the past – or you’re unsure – speak to your GP.”