What is a vaccine? What is the aim of vaccination ?
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a mild form of a disease that is put (injected) into a person or an animal’s blood using a needle (an injection) in order to protect the body against that disease
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* a vaccine is a special kind of preparation ( or medicine) which provides immunity ( or protection) against a perticular disease.
* aim of vaccination is to prevent disease, this means if a child will vaccinated over a perticular disease then the child will not get that disease again.
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