Robert Rayford

Robert Rayford was a teenager from St. Louis whose 1969 death was later recognized as the earliest confirmed AIDS case in the United States.

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HIV: HIV is a virus that attacks immune cells and can cause AIDS. Tests of Rayford’s archived tissue later detected HIV, decades before the virus was identified.
Polymerase chain reaction: A laboratory method that makes many copies of a selected DNA sequence. PCR enabled investigators to detect HIV genetic material in archived tissue.
David Mildvan: An American physician and researcher who investigated Rayford’s unusual illness in 1968. Mildvan treated Rayford and coauthored the report that first described the case.
Grethe Rask: A Danish surgeon who died in 1977 after an illness later attributed to AIDS. Her case, like Rayford’s, was recognized retrospectively before AIDS was formally identified.
HIV origin: The study of how and when HIV emerged in human populations. Rayford’s case documents U.S. infection by 1969 but does not identify where or when HIV first entered humans.
AIDS: AIDS is the advanced stage of HIV infection, marked by severe immune-system damage. Rayford’s illness and death were retrospectively linked to AIDS.
Immunohistochemistry: A tissue-staining method that uses antibodies to locate specific proteins under a microscope. Earlier examinations sought evidence of infection in Rayford’s preserved tissue.
Marvin S. Gottlieb: An American physician who coauthored the 1984 report connecting Rayford’s illness to AIDS. Gottlieb helped bring the case back into view after AIDS was recognized.
Arvid Noe: A Norwegian sailor whose family’s illnesses were later linked to HIV infection acquired decades earlier. The case illustrates how preserved records and samples can reveal HIV’s earlier spread.
HIV sequence contamination debate: Scientific scrutiny of whether reported HIV sequences in historical specimens reflect infection or laboratory contamination. The interpretation of Rayford’s archived samples has been questioned and reassessed.