The UK Health Security Agency (UKHSA) has confirmed 420 cases of measles in England since January 2025, with a notable increase in April and May. The majority of cases—roughly two-thirds—involve youngsters aged ten and younger. London has seen the largest number of infections this year, according to Xinhua.

Health experts are afraid that foreign travel during the summer holidays will lead to additional spread, particularly since measles is still prevalent in parts of Europe, Asia, and Africa.

UKHSA is urging parents to check that their children have received both doses of the MMR (measles, mumps, and rubella) vaccine. Vaccination is the best way to protect families and communities during the holiday season, Xinhua reported.