Question

How do vaccines “train” the immune system?

Answer 1

A vaccine works by training the immune system to recognize and fight against the disease or virus. they do this by using specific cells or molecules from that said disease or virus, that way it triggers your immune system and it learns how to fight against it safely.

Answer 2

A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response.

Explanation: Hope this helped!