If the measles vaccine was administered before the age of 12 or 15 months, it should be repeated.
For example, children don't receive measles vaccine until they are at least one year old.
The measles vaccine has been available for 40 years.
The measles vaccine is usually given to a child who is 12 to 15 month old.
But in 1957, he said, some physicians began using a less effective measles vaccine made from dead viruses.
Pregnant women should not receive the measles vaccine, health officials said.
In 1976 the recommended age for measles vaccine was raised to 15 months.
The world has come a long way since the measles vaccine was licensed in 1963.
The efficacy rate for two doses of measles vaccine can be higher than 99%.
A more recent paper showed an association of A*0101 with lower than average responses to measles vaccine.