The Parent of an Infant Asks Why Some Vaccines, Such

The parent of an infant asks why some vaccines, such as MMR, are not given
along with the other series of immunizations at 2, 4, and 6 months of age. What will the primary care pediatric nurse practitioner tell this parent?

A) Febrile seizures are more likely in younger infants with some vaccines.
B) Maternal antibodies neutralize some vaccines and are delayed until 12 months.
C) The risk of adverse effects is lower for some vaccines after the first year.
D) Too many vaccines at once can overwhelm the infant's immune system.