Submission + - Researchers Track the Origins of HIV Virus (medicaldaily.com)
An anonymous reader writes: A new study suggests that HIV may have affected humans much longer than is currently believed. In fact, the virus might have been around undetected for so many centuries that a human community developed some degree of resistance to the virus.
Researchers hypothesized that if HIV was affecting people for such a long time, then selection might have favored genetic traits that had a protective effect on the human population. To look for evidence, his team analyzed genetic map of people belonging to BiAka people.
The BiAka are nomadic pygmy people that live in the forests of Africa inhabited by the chimpanzee subspecies believed to be the source of the current HIV outbreak. Researchers compared genome of this community with four other African communities that live outside the chimpanzee's range.
Researchers hypothesized that if HIV was affecting people for such a long time, then selection might have favored genetic traits that had a protective effect on the human population. To look for evidence, his team analyzed genetic map of people belonging to BiAka people.
The BiAka are nomadic pygmy people that live in the forests of Africa inhabited by the chimpanzee subspecies believed to be the source of the current HIV outbreak. Researchers compared genome of this community with four other African communities that live outside the chimpanzee's range.