... scientists believe that process began much earlier. Outside of sub-Saharan Africa, Haiti appears to have the oldest HIV/AIDS epidemic; using gene sequences recovered from archival samples of the earliest known Haitian AIDS patients, researchers ...
http://www.medicaldaily.com/articles/16891/20130626/national-hiv-testing-day-hiv-story-hiv-fda-robert-gallo.htm
http://www.medicaldaily.com/articles/16891/20130626/national-hiv-testing-day-hiv-story-hiv-fda-robert-gallo.htm