what is vaccination
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A vaccination is a biological preparation that provide active accuired immunity to a particular disease . A vaccine typically contain an agent that resembles a disease causing microorganism and is often made from weekend and killed forms of the microbe , it's toxins or one of its surface proteins.
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Answer:
A vaccine is a biological preparation that provides active acquired immunity to a particular 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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