Is HIV Older Than We Thought?

It's possible. Some scientists have long estimated that HIV has existed among human populations since about 1930, but the Los Angeles Times is reporting on a new study that places the date of origin somewhere between 1884 and 1924, with a more focused estimate at 1908. According to the Times, this new research is based on lymph node tissue from an HIV positive woman who died in Africa in 1960. You can see the complete study HERE but it's a pay site; there's a synopsis available HERE for free.