Question

what is vaccine ....c..h....t...h..​

Answer 1

Answer:

A vaccine is a biological preparation that provides active acquired immunity to a particular 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.

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Answer 2

Answer:

a small dose of dead and weakened disease causing microbes used to stimulate immune response in the body is called vaccine