MMR vaccination is routinely given to children as part of the NHS childhood immunisation programme.
Which children should have the MMR vaccine?
The first dose of the MMR vaccine is offered to all babies at 1 year old.
Children are given a second dose of MMR before they start school, usually at 3 years and 4 months, although the second dose can be given as quickly as 3 months after the first if there's an urgent need, such as during an outbreak.
Some children who only have 1 dose of MMR may not be fully protected against measles, mumps and rubella. Up to 1 in 10 children are not fully immune after their first dose of MMR, but less than 1 in 100 children are still at risk after the second dose.
Which children should not have the MMR vaccine?
You should postpone your child's MMR jab if they're ill and have a high temperature (fever). If your child has a minor illness without fever, they can usually have vaccinations.
You may also want to postpone MMR vaccination if your child has had a bad reaction to a previous dose of the vaccine. It does not rule out having a further dose, but it's a good idea to speak to your GP, practice nurse or health visitor.
Your child should not have the MMR vaccination if they:
- are taking high-dose steroid tablets, or are taking lower doses either alongside other drugs or over a long time – if you're not sure, check with your GP
- have had a confirmed anaphylactic reaction (a severe allergic reaction) to a previous dose of the MMR vaccine or a component of it
- are being treated for cancer with chemotherapy or radiotherapy, or have had these treatments within the past 6 months
- have had an organ transplant and are on immunosuppressant drugs (drugs that stop your immune system working properly)
- have had a bone marrow transplant and finished all immunosuppressive therapy within the past 12 months
- have a lowered immune system – if you're not sure, check with your GP
Catching up on the MMR vaccine
Adults and children who are not immune because they missed 1 or all MMR doses when they were younger can have the MMR vaccine on the NHS at any age. This may include:
- people travelling
- women preparing for pregnancy
- people exposed to measles during a measles outbreak
Teenagers and MMR
Teenagers attending for their 3-in-1 teenage booster are generally asked about their MMR vaccination history.
If they missed any doses of MMR vaccine when they were younger, they can be given 2 doses of MMR vaccine on the NHS to protect them.
It's especially important for teenagers leaving home for college to be up to date with the MMR vaccine, as they are at higher risk of mumps.
Adults and MMR
Adults who missed out on the MMR vaccination as a baby and are therefore not immune can have the MMR vaccine on the NHS. It's given to adults as 2 doses, with the second dose given at least a month after the first.
Some adults may not have received full protection because of changes in the MMR vaccine. Anyone born between 1980 and 1990 may not have received a mumps vaccine, and anyone born between 1970 and 1979 may have only had a measles vaccine.
If you fall into one of these groups, ask your GP for the MMR vaccination.
Travelling and MMR
Anyone who is travelling to an area known to have had outbreaks of measles, mumps or rubella should receive the MMR vaccine before they go.
Learn more about travel vaccinations.
Pregnancy and the MMR vaccine
If you're thinking of having a baby
If you're considering becoming pregnant, it's a good idea to check you're fully protected against measles, mumps and rubella.
Rubella infection in pregnancy can lead to serious birth defects and miscarriage.
If you're not sure you've had 2 doses of the MMR vaccine, ask your GP practice to check.
If you have not had both doses, or there's no record available, you can have the vaccinations at your GP practice.
You should avoid becoming pregnant for 1 month after having MMR vaccination.
If you're already pregnant
The MMR vaccine cannot be given while you're pregnant, but it can be given when you're breastfeeding.
If you're currently pregnant and are not sure whether you've had 2 doses of MMR, ask your GP practice to check your records.
If you have not had 2 doses of the MMR vaccine, or there's no record available, you should ask for the vaccine when you go for your 6-week postnatal check-up after the birth. This will protect you from rubella in any future pregnancies.
If you're pregnant and develop a rash or come into contact with anyone who has a rash, you should contact your GP or midwife immediately, even if you've had 2 doses of the MMR vaccine.
MMR during measles outbreaks
In the event of a measles outbreak, the MMR vaccine can be given to protect people who have come into contact with the condition in the previous 3 days. This is because measles antibodies develop more quickly after vaccination than they do after a natural infection.
It is not harmful to have an MMR vaccination if you're already immune. If there's any doubt about whether you have already been vaccinated, go ahead and ask your GP for a catch-up vaccination.
Now, read about how the MMR vaccination is given.
Which adults should not have the MMR vaccine?
Very few people are unable to have the MMR vaccine for medical reasons.
However, as a general rule, you should not have the MMR vaccine if you:
- are pregnant – women should avoid becoming pregnant for 1 month after having the MMR vaccine
- have had an injection of immunoglobulin (antibodies to help fight infection) or another blood product in the past 3 months
- have already had a severe allergic reaction to neomycin (an antibiotic) or gelatin (a substance used in foods such as jelly)
- have a weakened immune system
If you previously had an allergic reaction to the MMR vaccine, you may not be able to have another dose. You can discuss with a specialist the risks of not having the full dose of MMR versus the likelihood and potential severity of having another allergic reaction if you choose to have another dose.
Read about the side effects of the MMR vaccine.
Page last reviewed: 10 July 2018
Next review due: 10 July 2021