Immunization is based on the
A) body's ability to remember an encounter with a specific antigen.
B) body's ability to differentiate a harmful pathogen from a harmless one.
C) introduction of an unrelated pathogen into the body to stimulate antigen production.
D) introduction of killer T cells into the body.

Question

Quizplus · Accepted Answer

Immunization involves introducing a harmless version of a pathogen (such as a vaccine) to stimulate the production of antibodies and memory cells in the body. These memory cells allow the body to recognize and quickly respond to the pathogen in the future, providing protection against infection. Therefore, immunization is based on the body's ability to remember (specifically, remember an encounter with a specific antigen).

Immunization Is Based on the