define vaccination.
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Step-by-step explanation:
Vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism.
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➡️Vaccination is the injection of a dead or weakened organism that forms immunity against that organism in the body.
➡️A vaccine is an antigenic substance that develops immunity against a disease which can be delivered through needle injections.
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