Write a short note on Vaccine?
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Explanation:
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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Vaccination is a process of development of immunity without infection. In this case, weakened pathogens are injected in the body to produce immunity against the particular pathogen. This pathogen stimulates the body to form anti-bodies. In this way, vaccinated person develops immunity against the pathogen. These days vaccination is used for T.B., mumps, polio, small pox, typhoid etc.
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