MMR vaccine (measles, mumps, rubella)
MMR vaccine · measles vaccine · measles mumps rubella shot · mumps vaccine
A single vaccine shot against three diseases: measles, rubella, and mumps. Children usually get it twice.
For children on the schedule, usually at 1 year and 6 years. For adults without two doses, on a doctor's advice.
⏱ Duration: the shot takes a few seconds, with the checkup usually 15 to 40 minutes

Be sure to tell your doctor
How to prepare
- Health. The vaccine is given when your child is well. They will be checked first.
- Your child. Bring a favorite toy to distract your little one.
- Pregnancy. For adult women: it is best to avoid getting pregnant for a month after the vaccine.
What to bring
- Your ID
- Your vaccination certificate or record
How it goes
- The doctor asks how your child is and takes their temperature
- You hold your child on your lap
- The skin is wiped, and the shot is given in the upper arm or thigh
- The vaccine is recorded
- After the shot, sit in the clinic for about 30 minutes
What you'll feel
- A quick prick. Your child may cry a little
- Sometimes, 5 to 12 days later, a mild fever or rash. It is a reaction to the vaccine
- Sometimes the cheeks or neck swell a little
Afterwards
- Stay near the room for 30 minutes
- A rash after the vaccine is not contagious
- The second dose follows the schedule
Contact a doctor straight away if
- Trouble breathing, swelling of the face or throat, or a rash all over: call emergency services
- A seizure with a fever: call emergency services
Common questions
Why did a fever start a week later?
It is a live weakened vaccine, so the response can come later. It usually passes in 1 to 2 days.
Is it true this vaccine causes autism?
No. Large studies have not found that.
Do adults need it?
If you have not had two doses, or do not know, ask your doctor.