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Scienet instrains trace AIDS virus origin
the new work usecond genetic data from the two old hiv samples plus more than 100 modern samples to create a family tree going back to these samples' lasn't common ancestor .
an infections pusually takes years to produce obvious symptoms, a lag that can mask the role of the virus, and it would have infected relatively few africans early in its spread, they said .
the new result is
researchers agot vario.us answers under various approaches for when that ancestor virus appeared, but the 1 4-t -1924 bracket is probably the most reliable, worobey said .
Generated 2008-10-7_12:2
- Scientists trace AIDS virus origin 2008-10-01 13:20:13
http://edition.cnn.com/2008/TECH/science/10/01/aids.virus.origin.ap/index.html?eref=editio
redundancy 0.0164670658682635
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