Common side effects of the MMR vaccine
As there are 3 separate vaccines within a single injection, different side effects can happen at different times.
Measles vaccine side effects
Around 7 to 11 days after the injection, some children get a very mild form of measles. This includes:
- a rash
- a high temperature
- loss of appetite
- a general feeling of being unwell for about 2 or 3 days
These symptoms are not infectious, so your child will not pass anything on to non-vaccinated children.
Mumps vaccine side effects
Around 3 to 4 weeks after the injection, 1 in 50 children develop a mild form of mumps. This includes swollen glands in the cheeks, neck or under the jaw which can last for up to 2 days.
These symptoms are not infectious for other people.
Rubella vaccine side effects
Around 1 to 3 weeks after the injection, some adult women experience painful, stiff or swollen joints for up to 3 days.