The United Kingdom has officially lost its status as a measles-free nation, as the World Health Organisation (WHO) reports that the virus has re-established transmission in the country. This marks a significant shift in the UK’s public health standing, after it was considered to have eradicated measles just a few years ago.
Decline in Vaccination Rates Blamed
The WHO’s announcement follows a concerning rise in measles cases, with 3,681 reported in 2024. Health experts have traced this resurgence to a sharp decline in vaccination rates, which had plateaued in recent years. From 2021 to 2023, the UK had been regarded as having “eliminated” the disease. However, the lapse in vaccination efforts has paved the way for its return.
Dr Vanessa Saliba, a consultant epidemiologist at the UK Health Security Agency (UKHSA), emphasized the importance of maintaining high vaccine coverage to prevent outbreaks. “Infections can return quickly when childhood vaccine uptake falls,” she said. According to the latest data, only 91.9% of five-year-olds received one dose of the MMR (measles, mumps, rubella) vaccine in 2024, with just 83.7% receiving both doses—figures that fall short of the 95% threshold needed to achieve herd immunity.
The UK government has responded by introducing the MMRV vaccine, which also protects against chickenpox, in an effort to improve vaccination rates. The new initiative includes a revised 18-month appointment for the second dose of the vaccine, aimed at boosting coverage among young children.
Despite these efforts, the WHO has warned that Europe as a whole is facing a broader challenge, with several countries struggling to maintain measles elimination due to persistent vaccination gaps. A spokesperson for the WHO stated that “outbreaks of measles and other vaccine-preventable diseases” have become a major threat to public health security across the region.
Dr Ben Kasstan-Dabush, a global health expert at the London School of Hygiene and Tropical Medicine, noted that the UK’s loss of measles elimination status was unsurprising, given the ongoing outbreaks since 2024 and the preventable death of a child in 2025. “Sustained measles transmission reflects a decade-long decline in routine vaccination coverage,” he said.
Experts are urging a nationwide push to address the gaps in vaccine uptake. Dr Bharat Pankhania, a senior public health lecturer at the University of Exeter, called for immediate action to remedy the situation. “Measles is preventable by vaccine, and it’s extremely concerning that in the UK we now have pockets of low or no vaccine uptake,” he warned.
