> The conception which lay behind the U.S. Public Health Service Syphilis Study at Tuskegee in 1932, in which 100% of its participants were poor, rural African-American men with very limited access to health information, reflects the racial attitudes in the U.S. at that time. The clinicians who led the study assumed that African-Americans were particularly susceptible to venereal diseases because of their race, and they assumed that the study's participants were not interested in receiving medical treatment.[4][45]
> Taliaferro Clark said, "The rather low intelligence of the Negro population, depressed economic conditions, and the common promiscuous sex relations not only contribute to the spread of syphilis but the prevailing indifference with regards to treatment."[45] In reality, the promise of medical treatment, usually reserved only for emergencies among the rural black population of Macon County, Alabama, was what secured subjects' cooperation in the study.[4]
I mean the other racist part was the fact that penicillin, which is still a standard treatment of syphilis today, was developed while the study was ongoing and yet there were still three more decades that it ran.