A mother brings in her child for a measles, mumps, and rubella vaccine and wants to know why more than one shot has to be given for this vaccine to be effective. It is explained to the mother that the vaccine is:
A) made of a carbohydrate, which is ineffective in one dose.
B) live, and often more than one dose is necessary for effectiveness.
C) a toxoid, and the immune system destroys the first therefore more doses are necessary.
D) inactive, and therefore two doses are required for activation.

Question

Quizplus · Accepted Answer

The MMR vaccine is a live attenuated vaccine, and multiple doses are often necessary to ensure full immunity and effectiveness.

A Mother Brings in Her Child for a Measles, Mumps