Question

2.How do vaccine works in our body? Who discovered it for the first time?​

Answer 1

Answer:

How does vaccine work?

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.

Who discovered vaccine for the first time?

The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed.

Explanation:

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Answer 2

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.

The first vaccine was introduced by British physician Edward Jenner, who in 1796 used the cowpox virus (vaccinia) to confer protection against smallpox, a related virus, in humans.

Explanation:

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