how is vaccine produced
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a vaccine contains dead or weak microorganisms which are inserted in the body of any human . The protecting cells of the body gets active and destroy the microorganisms and remain active for protection from any future attack
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The vaccine is composed of a protein that resides on the surface of the virus. This strategy can be used when an immune response to one part of the virus or bacteria is responsible for protection against disease. vaccine is a biological preparation that provides active acquired immunity to a particular disease.
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