What is the primary mechanism by which vaccines protect individuals from infectious diseas

A) They directly kill the disease-causing pathogens in the body.

B) They introduce antibodies that immediately fight off infection.

C) They stimulate the immune system to produce protective antibodies and memory cells.

D) They create a physical barrier against pathogen entry.

Explanation

Vaccines work by exposing the immune system to a weakened, inactivated, or partial form of a pathogen, prompting the body to develop an immune response (antibodies and memory cells) without causing the actual disease. This prepares the immune system to fight off future infections more effectively.

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What is the primary mechanism by which vaccines protect individuals from infectious diseases?

Explanation