Question

what is vaccine i know but for knowledge i am asking​

Answer 1

Answer:

vaccine is used to prevent a certain disease for which the vaccine is made

Answer 2

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.

Explanation:

I hope you understand...