Virus dating

03-Aug-2015 05:11

The new genetic analysis shows that HIV spread from Africa to the Caribbean in the 1960s.

From there it moved into New York City (see map) around 1970 or 1971.

Moira Rankin, senior archivist, said: "This is one of the most exciting discoveries we have made in the archive.

Worobey’s team now calculates that the virus likely first entered the United States in 1970 or 1971.