Sign in
Medicine & HealthWorld Wars and the Atom

Guatemala syphilis experiments

1946Claims checked

From 1946 to 1948 U.S. Public Health Service doctors deliberately infected about 1,300 Guatemalan prisoners, soldiers, psychiatric patients and sex workers with syphilis and other diseases, a study revealed only in 2010.

The story

Between 1946 and 1948, U.S. Public Health Service researchers led by John Cutler worked in Guatemala City with the cooperation of Guatemalan officials. To test whether penicillin could prevent sexually transmitted diseases, they deliberately exposed about 1,300 people, including prisoners, soldiers, patients in the national psychiatric hospital and sex workers, to syphilis, gonorrhea and chancroid. Methods included paying infected sex workers to have sex with prisoners and inoculating subjects directly through scraped skin. Fewer than 700 of those infected are documented as receiving treatment, and none gave informed consent.

Penicillin had recently become available, and the military wanted to protect soldiers from venereal disease. Cutler later worked on the Tuskegee syphilis study in Alabama. The Guatemala records sat unnoticed among his papers until historian Susan Reverby found them in 2010. Secretary of State Hillary Clinton and Health Secretary Kathleen Sebelius apologized that October, and President Obama called Guatemala's president. In 2011 the Presidential Commission for the Study of Bioethical Issues called the experiments a clear violation of ethics even by the standards of the time, titling its report Ethically Impossible.

Why it mattered

  • The revelation led to a presidential bioethics review of current protections for people in federally funded research.
  • It became, with Tuskegee, one of the defining examples of research abuse by the U.S. government.
  • Victims and descendants pursued lawsuits for decades, keeping the case in U.S. courts.

Sources

  1. Guatemala experiments 'heinous,' commission tells Obama Nature News Blog
  2. Panel condemns US syphilis study in Guatemala Al Jazeera
  3. CDC report on findings from the U.S. Public Health Service sexually transmitted disease inoculation study of 1946-1948 CDC (via The Black Vault)

Drafted by AI (Claude) from the sources above and checked against them by AI; no historian has reviewed this page. Spot a mistake? Suggest a correction. How pages are made

Claims checked against the record

Consensus: Public Health Service records and the 2011 presidential bioethics commission establish that U.S. researchers deliberately infected Guatemalans without consent. How many deaths the experiments caused could not be determined.

U.S. researchers deliberately infected Guatemalans with syphilis and other diseases without consentEstablished
The presidential commission reviewed some 125,000 pages of records and confirmed the intentional exposures.
Read this view
The experiments were wrong even by the standards of the 1940sEstablished
The commission found researchers knew the work was unethical, concealed it, and violated standards they themselves applied at home.
Read this view
The experiments killed dozens of peopleUnsupported
The commission found 83 subjects died during the period, but it could not establish how many deaths, if any, the experiments caused.
Where this claim comes from, and its rebuttals

Community notes

Loading notes…

Learn more ranked by votes

Documenttheblackvault.com
CDC report on findings from the U.S. Public Health Service sexually transmitted disease inoculation study of 1946-1948
Editor's pick
VideoSearch on YouTube
Guatemala syphilis experiments 1946 documentary
Editor's pick