The NHS is advising all parents to ensure their children are up to date with their routine vaccines including the MMR jab.
If your child has missed any of their routine vaccinations, it is not too late to get them from your GP.
Find out which vaccines your child needs on the NHS website.
Measles, mumps and rubella
The MMR vaccine protects against:
These highly infectious illnesses can spread easily and lead to serious illness including meningitis, pneumonia, hearing loss and problems in pregnancy.
"More than one in four children in Hammersmith & Fulham is not vaccinated against measles. Please contact your GP if your child is due for, or has missed their MMR vaccine to help protect them," said Dr Nicola Lang, Director of Public Health for Hammersmith & Fulham Council.
When should children have their MMR jab?
The first dose is given to all one-year-olds and the second dose – called the 'pre school booster' – for children aged three years and four months (can be given later if you've missed it) are the best way to protect your child from measles and other infectious diseases.
If your child has missed either of these vaccinations, please contact your GP to arrange an appointment.
Two doses of the MMR vaccine provide the best protection against measles, mumps and rubella.
Find out more about the MMR vaccine on the NHS website.
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