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who discovered the vaccine first time an for which disease? discuse the principle of vaccination |
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Answer» Edward Jenner discovered the vaccine. Jenner made the first vaccine against smallpox. A 'vaccine' is a biological preparation that improves immunity to a particular disease. A vaccine is an antigenic protein, inactivated or weakened live pathogen. On introduction of the body, it produces antibodies and memory B cells and memory T cells. Whenever the pathogen attacks a vaccinated person, the memory cells induce production of lymphocytes and antibodies that overwhelm and destroy the same. |
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