AIDS- population socl.

AIDS- population socl. - AIDS Origin most accepted theory...

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AIDS Origin: most accepted theory   AIDS originated in Africa (Congo,  formerly Zaire) in the 1950s.  HIV-1 appeared to have been  transmitted from a chimpanzee to a human.  The Congo war in  the 1960s helped spread it. United States: around 1980 Factors favoring the spread of AIDS Very slow transition from infection (HIV) to disease (AIDS) No clinical symptoms for years after infection.   Opportunistic infections and cancers due to low immunity. HIV can be detected via blood test (95% certainty @ 3  months; 99% @ six)
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AIDS Transmission:  Sexual Intravenous Mother to baby, during pregnancy and during breastfeeding Importance of each of these varies by society, and it depends  heavily on patterns of sexual networking (see slide 5 /6 ) As a consequence, prevalence rates by sex vary quite a bit
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Cumulative 0.5% and 1% risk Individual Cumulative Individual
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