Question

why do we take vaccination?how do they work​

Answer 1

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. These molecules are called antigens, and they are present on all viruses and bacteria.

Answer 2

Answer:

We take vaccunation to increase the immunit power for future attack of disease. they work by supplying nutrients to wbc .so they work continously.