What are vaccines? Name some vaccines.
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A vaccines is a biological preparation that provides active acquired immunity to a particular disease.
polio,BCG,DPT are some vaccines
polio,BCG,DPT are some vaccines
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AnswerA Vaccine is abiological preparation which provides immunity to the body and this process is called Vaccination. Weak microbes are generally ingested in this process.
E.g:- DPT,Polio
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