http://www.pnas.org/cgi/content/abstract/0705329104v1?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=hiv+haiti&searchid=1&FIRSTINDEX=0&resourcetype=HWCITIt´s a very interesting research about the rise of the hiv as a worldwide epidemic.
From Africa to Haiti around 1966. Then one guy

made the next move. He [or she] traveled to the U.S., maybe in 1969, and in 10 years the seeds were ready. The sad harvest began in the 80´s.