The UK has officially lost its measles elimination status after a sharp rise in cases, the World Health Organisation has announced.
The global health body said measles transmission has been ‘re-established’, following widespread spread in 2024 when there were around 3,600 suspected infections.
Elimination status means there is no continuous transmission of the disease – and experts warned the move was largely expected.
More than 1,000 measles cases have already been recorded in the UK in 2025, while infections across Europe have reached record highs.
In 2024, the UK saw its worst measles outbreak on record, with 3,681 confirmed cases.
Officials say the decision reflects a dangerous drop in herd immunity, with vaccine uptake falling below the 95 per cent level needed to prevent sustained outbreaks.
The UK was first granted measles elimination status in 2017, but lost it two years later before regaining it in 2021 after Covid restrictions largely halted the spread of the virus.
However, measles began circulating again in late 2023, triggering the surge seen last year.
Cold-like symptoms, such as a fever, cough and a runny or blocked nose, are usually the first signal of measles. A few days later, some people develop small white spots on the inside of their cheeks and the back of their lips
Cold-like symptoms – including fever, cough, and a runny or blocked nose – are often the first signs. A few days later, some people develop small white spots inside the mouth, before the distinctive rash appears.
Vaccination uptake has been slipping for years, with coverage at around 92 per cent for the first dose and just under 85 per cent for the second.
Dr Vanessa Saliba, consultant epidemiologist at the UK Health Security Agency, warned: ‘Infections can return quickly when childhood vaccine uptake falls.
‘Measles elimination is only possible if all eligible children receive two MMRV doses before school and older children and adults who missed vaccination must be caught up.’
The NHS is now urging families to come forward and is offering the second dose earlier, bringing it forward to a new 18-month appointment.
A WHO spokesperson said the UK’s change in status reflects a wider problem unfolding across Europe.
They said: ‘Outbreaks of measles and other vaccine-preventable diseases are threats to health security in Europe, alongside antimicrobial resistance and other emerging threats.
‘Persistent immunity gaps led to a region-wide resurgence in measles and other vaccine-preventable diseases in 2024 and a decrease in the number of countries that have achieved or sustained measles elimination status.
‘Through strengthened surveillance, improved outbreak response, and focused efforts to reach under-vaccinated communities, all countries can achieve and sustain elimination.’
Measles typically starts as a flu-like illness followed by the tell-tale rash – but it can be deadly if it spreads to the lungs or brain.
One in five infected children will be hospitalised, with around one in 15 developing severe complications such as meningitis or sepsis.
The MMR vaccine has been offered to children in the UK since the late 1980s.
But uptake collapsed in the late 1990s and early 2000s after a now-discredited 1998 study by Andrew Wakefield falsely linked the jab to autism.
The claim triggered widespread fear, leading tens of thousands of parents to refuse the vaccine.
Earlier this year, Donald Trump’s Health Secretary Robert F Kennedy Jr vowed to ‘look at vaccines’ as he investigated rising autism diagnoses.
But in April, amid a measles surge in the US, RFK Jr performed a major about-face – saying the MMR jab is the ‘most effective way’ to prevent the potentially dangerous virus.
