The United Kingdom has officially lost its measles elimination status, according to an announcement by the World Health Organization (WHO). The decision follows a significant resurgence of measles cases during 2024, when approximately 3,600 suspected cases were reported, including more than 1,000 confirmed infections.

Measles elimination status is awarded when a country demonstrates no sustained transmission of the virus. Given the scale and spread of outbreaks throughout 2024, the loss of this status was widely anticipated by public health experts.

A key factor behind the resurgence is declining vaccination coverage. To maintain herd immunity and prevent widespread transmission, at least 95% vaccination coverage is required. However, by the end of 2024, uptake in the UK stood at 92% for the first dose of the measles, mumps, rubella, and varicella (MMRV) vaccine, and just under 85% for the second dose—well below the recommended threshold.

The UK was first declared measles-free in 2017 but lost this designation in 2019. It later regained elimination status in 2021, largely due to reduced transmission during the COVID-19 pandemic when social distancing measures limited the spread of infectious diseases. However, renewed outbreaks in late 2023 allowed measles to spread rapidly again, leading to the sharp rise in cases seen in 2024.

Dr Vanessa Saliba, consultant epidemiologist at the UK Health Security Agency (UKHSA), warned that measles can return swiftly when childhood vaccination rates fall. She emphasized that elimination is only achievable if all eligible children receive two doses of the MMRV vaccine before starting school. To address declining uptake, the NHS has introduced measures to make vaccination more accessible, including offering the second MMRV dose earlier at a new 18-month appointment. Catch-up vaccinations also remain available for older children and adults.

Dr Bharat Pankhania from the University of Exeter described the situation as deeply concerning, highlighting that measles is a vaccine-preventable disease. He pointed to growing pockets of low or nonexistent vaccination uptake across the UK as a major risk to public health. According to Dr Pankhania, urgent action is needed, including improved access to general practitioners, increased numbers of health visitors able to vaccinate infants at home, and stronger efforts to counter misinformation about vaccine safety.

Public health experts continue to stress that improving vaccination coverage is essential to prevent further outbreaks and restore measles elimination status in the UK.

Source

BBC News – UK loses measles elimination status after rise in cases
https://www.bbc.com/news