Question

hello please tell me ...what is vaccine?​

Answer 1

Vaccine

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.

Answer 2

Vaccination means developing resistance against a particular disease

BEFORE it occurs.It was coined by Edward Jenner.

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