The U.S. Public Health Service Syphilis Study at Tuskegee
From the CDC: The U.S Public Health Service (USPHS) Syphilis Study at Tuskegee was a clinical study conducted between 1932 and 1972. The study was intended to observe the natural history of untreated syphilis. As part of the study, researchers did not collect informed consent from participants and they did not offer treatment, even after it was widely available. The study ended in 1972[…]