182.A police officer in New York receives a vaccine for anthrax. The
immunological basis for the vaccine is based on which of the following facts?
a. The primary response has a longer lag period
b. The secondary response has a shorter duration
c. The primary response is primarily an IgM response
d. The primary response lacks specificity
e. The primary response generates memory B and T cells
Lymphoid System and Cellular Immunology 279