Question

what is vaccination​

Answer 1

Explanation:

Vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened or killed state, or proteins or toxins from the organism.

Answer 2

Answer:

Explanation:

A vaccination is a treatment which makes the body stronger against a particular infection. ... Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection