Math, asked by ffproplyr, 5 hours ago

what is vaccine
nwnajpypye​

Answers

Answered by s15808anishika03275
2

Answer:

A vaccine is a preparation that improves immunity to a particular disease.

Step-by-step explanation:

A vaccine is an antigenic substance that develops immunity against a disease which can be delivered through needle injections or by mouth or by aerosol.

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