anth200apr21

anth200apr21 - ANTH 200 April 21, 2008 Evolution of H...

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Unformatted text preview: ANTH 200 April 21, 2008 Evolution of H IV/AIDS In a relatively monogamous species, a sexually transmitted viral disease with a typical infectious period of a few days or weeks (like a flue) would rapidly be extinct H IV, therefore, has evolved: 1. Long latency 2. 2. Rapid replication of virus in host 3. H IV can evolve as much in 1 day as humans have evolved in the past 5,000 years Diseases spread by personal contact: lower virulence than airborne, waterborne, insect-borne, in spite of the hype over ebola. – except AIDS Early evolution of HIV in Africa in prostitutes rapid spread, no need for long latency and reduced effects. Many diseases spread best among sick, inactive people (Malaria), other require host to walk around (cold and flue), and HIV requires sexual contact. AIDs latency period has evolved longer in populations where condoms used (e.g. gay men in the US and Europe) and short latency when no condoms used....
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This note was uploaded on 09/03/2009 for the course ANTH 200 taught by Professor Stanford during the Fall '08 term at USC.

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anth200apr21 - ANTH 200 April 21, 2008 Evolution of H...

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