The Ethics of Hunting Down ‘Patient Zero’; New York Times, 10/29/16

Donald G. McNeil Jr., New York Times; The Ethics of Hunting Down ‘Patient Zero’ :

"The alleged “Patient Zero” of the American AIDS epidemic — a French Canadian flight attendant named Gaétan Dugas, who died of AIDS in 1984 — was exonerated last week.

Genetic sequencing of blood samples stored since the 1970s showed that the strain infecting him had circulated among gay men in New York for several years before he arrived here in 1974...

Decisions about whether to find index patients, to release details like age or race or sexual or hygiene habits, and ultimately whether to name them, “are all about the need to know,” Dr. Darrow said. “You weigh the potential harm against the potential benefit.”"