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A measles outbreak has emerged in north-east London, igniting alarm among parents as the UK Health Security Agency (UKHSA) confirms hospitalisations among affected children. This highly contagious disease is predominantly striking unvaccinated children under the age of 10. With laboratory-confirmed cases already reported, health professionals are urging vigilance and awareness of the disease’s subtle initial symptoms.
The Current Situation
As of mid-February 2026, the UKHSA has documented 34 confirmed cases of measles in Enfield, with over 60 additional suspected cases linked to local schools and a nursery. The swift increase in cases has raised concerns about the potential for further spread, particularly as measles can be transmitted easily among children, especially those who are not vaccinated.
Dr Henrik Premasundaram, a general practitioner at HCA Healthcare UK, highlights the importance of recognising early symptoms of measles, which often mimic those of other common illnesses. Knowing what to look for can be crucial in managing this public health concern.
Recognising the Symptoms
Cold-Like Indicators
The initial phase of measles typically presents between one to four days after exposure, with symptoms that resemble a common cold. Dr Premasundaram notes, “Children may experience a cough, fever, runny nose, and sore, red, watery eyes. However, those with measles often appear more unwell, exhausted, and distressed compared to typical viral infections.”

Heightened Sensitivity and Fever
In addition to cold-like symptoms, children may become increasingly sensitive to light due to sore eyes. A high fever is also a hallmark of measles, escalating during the first few days of the illness.
Loss of Appetite and Rashes
A noticeable reduction in appetite or fluid intake may occur. The rash, which generally appears between days four and five, often begins on the face and behind the ears before spreading to the body and limbs. Dr Premasundaram explains, “The fever typically peaks when the rash emerges, and the spots may join together to form blotchy patches, though they are usually not itchy.”
Koplik’s Spots
Additionally, some children may develop small white spots inside their mouths, known as Koplik’s spots, which serve as a specific indicator of measles. These spots usually last for several days and can appear before the full-body rash manifests.
Contagion and Complications
Understanding Measles Transmission
Measles is highly contagious, with the potential to spread from four days before a rash appears to four days after. Dr Premasundaram advises parents to isolate their unwell child as much as possible, particularly if there are unvaccinated family members in close proximity. To limit transmission, the NHS recommends maintaining good hygiene practices, such as frequent handwashing and proper disposal of tissues.
Potential Health Risks
Measles is not merely a benign childhood illness; it can lead to severe complications, including pneumonia, meningitis, and in some cases, serious neurological issues. Dr Premasundaram warns, “If a child becomes increasingly lethargic, experiences breathing difficulties, or has a high fever that does not improve, seeking medical attention is crucial.”
Prevention and Vaccination
The Importance of the MMR Vaccine
The most effective safeguard against measles is vaccination. The MMR vaccine, which protects against measles, mumps, and rubella, is highly recommended. The first dose is typically administered after a child turns 12 months, with a second dose given around the age of three. Dr Premasundaram emphasises, “Two doses provide strong protection, and it is vital for parents to ensure their children are vaccinated, especially given the highly infectious nature of measles.”

If your child has not yet received the MMR vaccine, consult your GP to arrange vaccination. The MMR vaccine is one of the most extensively researched vaccines available, underscoring its reliability.
Why it Matters
The resurgence of measles in London serves as a stark reminder of the importance of vaccination and public health awareness. With the potential for severe health implications, understanding the symptoms and ensuring children are vaccinated can safeguard not only individual health but also the community at large. As outbreaks occur, the collective responsibility to protect vulnerable populations becomes ever more critical. Parents are encouraged to stay informed and proactive in their child’s health, fostering a safer environment for all.