The Origins of HIV

In 1983, Dr. Franz Waz Barisinusi and her colleagues at the Pasteur Institute report the discovery of a retrovirus that could be the cause of AIDS. Her theory is later proved right and she will win a Nobel Prize for it in 2008. We've had the name for HIV for the past 40 years, but the virus itself has existed far longer than that. So where did HIV originate? And how? Well, Paul Sharp is a geneticist at the University of Edinburgh. He spent much of his career following this detective story. The clues point to a jump of a related virus, which is called SIV and carried by chimpanzees into humans,. probably in the env