Question

define vaccine please answer me urgently​

Answer 1

Answer:

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Explanation:

Vaccine: A product that stimulates a person's immune system to produce immunity to a specific disease, protecting the person from that disease. Vaccines are usually administered through needle injections, but can also be administered by mouth or sprayed into the nose.

Answer 2

Answer:

A mild form of a disease that is put (injected) into a person or an animal’s blood using a needle (an injection) in order to protect the body against that disease.

Explanation:

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