Question

How do vaccinations work to keep patients healthy? They remove any trace of disease or pathogens from the human body. They provide additional white blood cells, which work to fight off diseases. They help build up the skin to better block out disease and pathogens. They introduce a weakened form of a disease so the body can learn how to fight it off.

Answer 1

They are injected to the body as a weakened pathogen of the virus so they body will make antibodies to fight it off keeping you immune to that strand of the virus in the future

Answer 2

They introduce a weakened form of a disease so the body can learn how to fight it off.

Step-by-step explanation:

I don't really know how to explain. That is what I have learned in school tho.