Investigators trying to track the early spread of HIV found HIV-infected blood samples form as early as 1956, in the blood of a widely traveled Norwegian sailor who died of immune deficiency.

Question

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The earliest confirmed case of HIV in a human dates back to a blood sample taken in 1959 from a man in Kinshasa, Democratic Republic of Congo. There is no record of a 1956 case involving a Norwegian sailor.

Investigators Trying to Track the Early Spread of HIV Found