The measles-mumps-rubella (MMR)vaccine should be administered between 12 and 15 months of age because:
A) children under this age are not susceptible to rubellA.
B) by this time maternally acquired passive immunity has been depleted.
C) children younger than 15 months of age are more likely to have an allergic reaction to the vaccine.
D) this is the period of greatest susceptibility.

Question

Quizplus · Accepted Answer

The MMR vaccine is administered between 12 and 15 months of age because by this time maternally acquired passive immunity has been depleted, and the child's own immunity is developing. This ensures that the vaccine will be most effective in protecting the child against measles, mumps, and rubella. Children under this age are still protected by maternal antibodies, which can interfere with the vaccine's effectiveness.

The Measles-Mumps-Rubella (MMR)vaccine Should Be Administered Between 12 and 15