Scientists have concluded, based on mathematical research, that the virus that lead to the epidemic of AIDS can be traced all the way back to 1930, somewhere around Central Africa. Bette Korber, of the Los Alamos National Laboratory in New Mexico, presented this conclusion at the Conference of Retroviruses. The notion that HIV was introduced in contaminated oral polio vaccines in Africa between the years of 1957 and 1961 has been often debated and challenged. The results presented …showed first 75 words of 621 total…

…showed last 75 words of 621 total…