Dictionary

Vaccine

Refers to the introduction of vaccine-attenuated or killed micro-organisms (bacteria or viruses) – into the body for the purpose of inducing protective immunity against infectious diseases. Conventional prophylactic vaccines aim at stopping people becoming infected. Therapeutic vaccines are products that stimulate the immune system of people with chronic infection to eliminate the virus from their bodies. Vaccine preparations can be natural, synthetic or derived by recombinant DNA technology.

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