What is the principal behind vaccinations?
A) An inactive or weakened disease-causing agent is injected to stimulate the body to produce antibodies and memory cells.
B) An inactive antigen can stimulate RBC to multiply.
C) Vaccinations stimulate a hyperacute rejection against the infectious agent.
D) Vaccinations contain antibodies that will stay in the body and provide long-term protection against the infectious agent.
E) All viruses and bacteria have identical antigens.

Question

Quizplus · Accepted Answer

Vaccinations work based on the principle of introducing a weakened or inactive form of a disease-causing agent into the body. This triggers the immune system to produce antibodies and memory cells that will recognize and fight off the actual infectious agent if it is encountered in the future. This creates immunity to the disease without the individual having to actually contract the full-blown illness.

What Is the Principal Behind Vaccinations