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22 September 2026
Measles was declared eliminated in the UK in 2017. Less than a decade later, it is back, and childcare settings are on the front line.
Nurseries, childminders and activity clubs care for exactly the group most at risk: young children, some too young to be vaccinated, spending long hours in close contact with one another.
For providers, this isn't abstract public health news. It's a live operational risk that sits alongside fire safety, allergen management and safeguarding as something every setting needs a plan for.
Measles is one of the most infectious diseases known.
A single case can infect a dozen or more unvaccinated people in the same setting, and the virus can linger in the air of a room for up to two hours after an infected person has left it.
Keeping it out of circulation depends on maintaining very high population immunity: the World Health Organization puts the threshold at 95% coverage with both doses of the MMR (or MMRV) vaccine.
The UK is currently below that threshold. The World Health Organization estimates around 92.3% of children receive the first dose and 84.4% receive both doses by age five. However, there is wide regional variation, from roughly 72% in London to 89.6% in Scotland.
Coverage does climb as children get older and catch up on missed doses, reaching around 93% by age five, but by then younger siblings, unvaccinated infants and other vulnerable children have already been exposed to months of avoidable risk.
Several routine childhood vaccines, not just MMR, showed further small declines in early 2026, continuing a trend seen over the past decade.
The reasons are varied: appointment access, missed reminders, and general complacency after decades without seeing serious measles outbreaks all play a part.
But a significant and well-documented driver is the spread of misinformation about vaccine safety, which has eroded parental confidence even though the evidence for MMR's safety and effectiveness is exceptionally strong. Two doses of the vaccine give around 99% protection against measles.
The consequence has been visible in the case numbers.
England recorded 2,911 confirmed measles cases in 2024, the highest annual total in decades, with 983 further cases confirmed by the end of August 2026.
Two children have died from measles in England so far in 2026. Cases remain concentrated in areas with the lowest vaccination coverage, and the majority affect unvaccinated children aged ten and under, exactly the age group in early years and childcare settings.
This matters for every provider, not just those in high-incidence areas.
When population immunity falls, the people who pay the price first are the ones who can't be vaccinated: babies under 12 months, and children who are immunocompromised for medical reasons.
A setting's own vaccination rates are largely outside its control, but its readiness to recognise and respond to a case is not.
Measles typically takes 7 to 18 days to develop after exposure, with the rash usually appearing around day 14.
Early symptoms can look like a routine winter illness, which is part of what makes it easy to miss. The first symptoms include:
The rash itself usually starts on the face and behind the ears a few days after the initial symptoms, then spreads down the body.
It's made up of small, sometimes raised, red-brown blotchy spots that can join together in larger patches.
Crucially for infection control, a person with measles is contagious from around four days before the rash appears until four days after it starts, meaning they can pass the virus on before anyone realises what they're dealing with.
Current UK guidance is that anyone with measles should stay away from nurseries, childminder settings and other group childcare until four days after the rash first appeared.
Measles is sometimes still thought of as a mild childhood illness. It isn't, and this is the part of the conversation that matters most for anyone responsible for children's welfare.
Most children with measles recover, but complications are common enough to take seriously, particularly in children under five.
These include ear infections, diarrhoea and dehydration, and chest infections. Pneumonia is the most frequent cause of measles-related death in young children.
Rarer but more serious complications include:
Measles in pregnancy carries its own risks, including miscarriage, stillbirth, premature birth and low birthweight, which is one reason early identification and swift communication with families matters so much in a childcare setting where staff or visiting parents may be pregnant.
None of this is intended to alarm.
It's intended to explain why "it's just measles" is the wrong starting point for any provider's risk assessment, and why outbreak readiness deserves the same structured attention as any other significant hazard.
Good infectious disease management in childcare isn't about single dramatic actions.
It's about having a clear, well-rehearsed process that staff can follow calmly under pressure. The following areas are worth building into your policies and training now, before a case arrives rather than after.
Have a written infectious disease policy, and keep it current. This should cover recognition of common symptoms, exclusion periods for measles and other notifiable illnesses, and a clear chain of responsibility for who acts when a case is suspected. Review it at least annually, and whenever official guidance changes.
Act quickly on a suspected case. If a child develops symptoms consistent with measles while in your care, move the child away from the main group as far as safely and practically possible, ensure they remain appropriately supervised, and arrange prompt collection. If possible, there should be 1 on 1 supervision outwith the main room. Contact their parents or carer to arrange collection, and advise them to seek medical advice by phone (their GP or NHS 111) rather than attending a surgery or A&E in person, to avoid exposing others.
Know your exclusion periods. Current guidance requires exclusion until four days after the rash appears for measles. Other common childhood infections carry different periods, for example five days after the rash for chickenpox, or until 48 hours after the last episode of diarrhoea and vomiting. Keeping an at-a-glance reference for staff reduces uncertainty in the moment.
Notify the right people. Measles is a notifiable disease. If you suspect a case, contact your local health protection team promptly: UKHSA in England, your NHS board health protection team in Scotland, Public Health Wales in Wales, or the Public Health Agency in Northern Ireland Communicate with parents and carers promptly and sensitively, without disclosing the identity of the affected child.
Identify and protect vulnerable contacts. Babies too young to be vaccinated, pregnant staff or visitors, and anyone who is immunocompromised are at greater risk of complications. If they may have been exposed, advise them to contact their GP or NHS 111 promptly, since post-exposure treatment can sometimes reduce the risk of infection if given quickly.
Encourage, don't mandate, vaccination checks. Settings cannot lawfully refuse to admit a child solely because they are unvaccinated, but you can, and should, ask about vaccination status at enrolment, keep accurate records, and gently encourage parents who have missed doses to catch up on the NHS, which remains free at any age for those who missed it in childhood.
Have a heightened infection risk assessment ready. Having a heightened infection risk assessment prepared in advance is good practice. It allows team members to understand the additional control measures that should be introduced when the risk of infection increases, such as during an outbreak or following public health advice. This helps ensure the setting can respond quickly and consistently when enhanced precautions are required.
Reinforce everyday hygiene and ventilation. Good hand hygiene, respiratory etiquette (catching coughs and sneezes), regular cleaning of frequently touched surfaces, and keeping rooms well ventilated all reduce transmission risk for measles and for the many other infections that circulate through childcare settings.
Keep accurate attendance and contact records. If contact tracing becomes necessary, health protection teams will need to know who was in the setting and when. Good record-keeping, done routinely rather than reconstructed after the fact, makes this process far faster and less stressful.
Falling vaccination rates are a national trend that no individual setting can fix alone.
What every provider can control is how well prepared they are: how quickly a case is recognised, how clearly staff know what to do next, and how confidently families are communicated with when it matters.
That kind of readiness comes from treating infectious disease management the same way you would any other safeguarding or health and safety risk: with a current, well-understood policy, regular quality checks, and training that's revisited rather than left to gather dust.
Tools like Tudu's risk assessments, checklists and staff training features are designed to make exactly that kind of ongoing readiness manageable, so your team can focus on the children in front of them, confident that the fundamentals are covered.
If you want to learn more about the childcare tools available from Tudu, contact us or book a demo.
Sources: NHS, UK Health Security Agency (UKHSA), GOV.UK health protection guidance, and the World Health Organization / CDC on global measles vaccination coverage. Figures accurate as of September 2026; always check the latest UKHSA and GOV.UK guidance for current advice, as case data and recommendations are updated regularly.
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