A measles outbreak in North London has seen 50 children with confirmed cases of the virus.
It comes after the UK Health Security Agency (UKHSA) said an outbreak in schools and nurseries in north-east London was affecting unvaccinated children under the age of 10, leaving some children needing hospital treatment.
It previously reported 34 laboratory-confirmed measles cases in Enfield from 1 January to 9 February.
But the latest data from the UKHSA has confirmed measles cases have continued to increase in London, which is being driven by the outbreak in Enfield, with 50 confirmed cases in the borough up to 16 February. The agency also confirmed there were 10 cases in the neighbouring borough of Haringey and 23 cases in Birmingham.
Measles is one of the most contagious diseases known to affect humans, which starts as a cold-like virus followed by a rash a few days later. But it can trigger serious complications such as ear infections, encephalitis (swelling of the brain), blindness, breathing problems or pneumonia.
The World Health Organisation recommends that at least 95 per cent of children should receive vaccine doses for each illness to achieve herd immunity. But uptake of the MMRV vaccine, which helps protect against measles, mumps, rubella and chickenpox, is now at record lows, particularly in UK cities.
Just 64.3 per cent of five-year-olds in Enfield had received both doses of the vaccine in 2024-2025 – one of the lowest rates in the country.
Since 1 January 2026, there have been 130 laboratory-confirmed measles cases reported in England. Some 68 per cent of these cases have been in London and 22 per cent in the West Midlands.
Dr Vanessa Saliba, consultant epidemiologist at the UKHSA, said: “The outbreak is still mostly affecting unvaccinated children under 10 in schools and nurseries. With the time lag involved with confirming cases through laboratory testing, we expect the actual number of cases to be higher.
“The outbreak has led to some children having to be hospitalised. Measles is a nasty illness for any child, but for some it can lead to serious long-term complications and tragically death, but is so easily preventable with two doses of the MMRV vaccine.
“All parents want what is best for their child – if they have missed any of their doses or you’re unsure, get in touch with your GP surgery. It’s never too late to catch up.
“The MMRV vaccine will give them the vital protection they need against this highly contagious disease, and also help protect more vulnerable children around them who are too young or unable to have the vaccine due a weakened immune system.”
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