Killed Vaccines Work by Stimulating

Question

Killed vaccines work by stimulating
A) an antibody response.
B) phagocytic activity.
C) the cell-mediated immune response.
D) cytotoxic T cells.
E) lymphocyte proliferation.

Accepted Answer

Killed vaccines contain inactivated or dead bacteria or viruses that cannot cause infection, but can still stimulate the immune system to produce antibodies against them. This antibody response provides protection against future exposure to the live, infectious form of the pathogen.