ch15 Vaccines Summer11 - Practical Applications of Immunity...

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1 Practical Applications of Immunity – Vaccination Chapter 15 Contd.
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2 Types of Immunity • Active Immunity • Passive Immunity • Naturally Acquired Immunity • Artificially Acquired Immunity Antibodies Antitoxins
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3 Specific Host Defenses – Key Terms
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4 Every year, __ to __ million children die of preventable infectious diseases for which vaccines are available. Examples: Measles deaths in Africa, tetanus, yellow fever, rotavirus (diarrhoea), Hib Many diseases cannot be t__________ once contracted – prevention is more effective, easier & cheaper than treatment. In the U.S. several _______ children lack adequate vaccination (only ____% vaccinated in 2005). Vaccines are not available for all diseases eg HIV, malaria, chlamydias, fungi, E.coli, Shigella. Importance of Vaccination
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5 A young milkmaid informed the physician Edward Jenner that she could not get smallpox because she had already been sick from cowpox. 1796: Edward Jenner inoculated a person with cowpox virus. The person was then protected from smallpox. Called vaccination -vacca for cow, Immunity = protection from disease Review A Little History
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6
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7 Ali Maow Maalin, the last person to naturally contract smallpox Photograph Courtesy of J. Wickett and The World Health Organization Ethiopia, 1976 Ali Mao Maalin, a cook in Merca,
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ch15 Vaccines Summer11 - Practical Applications of Immunity...

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