Microbiology and Immunology 3820A Lecture Notes - Lecture 5: Epitope, Poliomyelitis, Neuraminidase

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Most effective ways to prevent infectious diseases are: prevent transmission, prevent infection. Herd immunity: stops transmission so it protects susceptible individuals. In a population, the risk of infection is reduced when the number of individuals who can spread the infection is reduced. Herd immunity is only effective when a sufficient number of people are immune. Disease outbreaks can occur when immunity in a population falls below a critical percentage. Vaccination has controlled 14 infectious diseases: smallpox, rotavirus, poliomyelitis. 4: rabies, measles, haemophilus influenzae type b, rubella, tetanus, hepatitis b, pertussis, yellow fever, typhoid, mumps, diptheria. Annual number of disease cases in the united states in: Introduction of vaccines in usa & disease notifications. In 1796, he demonstrated immunity to smallpox by inoculating an: edward jenner, 8 year-old boy with cowpox virus (variolae vaccinae), 1774 - benjamin jesty innoculated family with pus from cowpox blister of a cow to.

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