what is vaccination?
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A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins
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dead or weekend disease causing microbes are given orally or injected in order to develop antibodies in the body which protect us from future infection by the microbe these dead or weekend microbes institute a vaccine and this phenomenon is known as vaccination
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