In Tuskegee, Alabama, the Rosenwald Fund made grants to the Alabama State Board of Health to help meet the cost of a sutdy of syphilis in African American men living in rural Georgia and Alabama. Thus would begin a four decade long study of syphilis without treatment. Over 400 men were allowed to carry the disease without medical treatment for nearly 40 years. Several government agencies including the Federal Public Health Service and the Center for Disease Control participated in the unethical study. It was kept a secret until 1972 when a newspaper reporter disclosed it.
