Science, asked by happyhappy546788, 2 months ago

what is a vaccine?????​

Answers

Answered by Nitin1946X
1

Answer:

A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.

Answered by Anonymous
3

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

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