Vaccines are composed of_________ that stimulate an active immunity to the pathogen.
A) memory T cells that respond to a microorganism
B) the non -pathogenic portion of the microorganism
C) the pathogenic portion of the microorganism
D) antibodies to a microorganism
E) memory B cells that respond to a microorganism

Question

Quizplus · Accepted Answer

Vaccines often contain non-pathogenic portions of the microorganism (such as inactivated toxins, parts of the virus or bacteria, or weakened forms of the pathogen) that stimulate the body's immune system to develop active immunity to the pathogen, without causing the disease itself.

Vaccines Are Composed Of_________ That Stimulate an Active Immunity to the Pathogen