Question

how do vaccines works in our body

Answer 1

Vaccines are like a training course for the immune system. They prepare the body to fight disease without exposing it to disease symptoms. When foreign invaders such as bacteria or viruses enter the body, immune cells called lymphocytes respond by producing antibodies, which are protein molecules.

Answer 2

Vaccines are weakened or dead microbes. when it is injected into out blood stream, the antibodies start to destroy the microbes. if our body is Once again exposed to the same microbes, then the antibodies remember this type of microbes and it is easier for the antibodies to destroy the microbes