what does a vaccine contain???

Asked by  | 28th Aug, 2008, 12:00: PM

Expert Answer:

Vaccine is any preparation of killed microorganisms or living weakened organisms introduced into the body to produce immunity to a specific disease by causing the formation of antibodies. It contains a suspension of attenuated live or killed microorganisms (bacteria, viruses, or rickettsiae), or fractions thereof.

Answered by  | 28th Aug, 2008, 12:03: PM

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