Question

how does vaccine work ​

Answer 1

Answer:

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:

Vaccines have weak or dead microbes of the disease from which we want to protect us. this helps our body to build antibodies to. kill those microbes and when we are caught by that disease our body is already prepared to fight so we recover soon

Explanation:

hope it helped you dear