16th October 2019


How long is the measles vaccine effective?

Duration of protection by vaccine
DiseaseEstimated duration of protection from vaccine after receipt of all recommended doses 1,2
Hepatitis B>20 years to date
MeaslesLife-long in >96% vaccines
Mumps>10 years in 90%, waning slowly over time
RubellaMost vaccinees (>90%) protected >15-20 years

How many measles shots are required?

The vaccine protects against three diseases: measles, mumps, and rubella. CDC recommends children get two doses of MMR vaccine, starting with the first dose at 12 through 15 months of age, and the second dose at 4 through 6 years of age. Teens and adults should also be up to date on their MMR vaccination.
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