
Betwixt The Sheets: The History of Sex, Scandal & Society The Syphilis Explosion of the American Civil War
Jan 20, 2026
Catherine Olivarius, Stanford historian who studies 19th-century disease and society, explains how syphilis surged during the American Civil War. She discusses the disease’s stages and brutal treatments. Short scenes cover military medical exams, attempts to curb infections, the boom in sex work, and the war’s long shadow on families and public health.
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Three Stages And The Hidden Horror
- Syphilis presents in three stages: primary chancre, contagious secondary rash, and often-devastating tertiary disease including gummas, nose loss, organ damage, and neurosyphilis.
- Catherine Olivarius emphasises the disease was incurable until penicillin in the 1940s, making tertiary progression a lifelong social and medical catastrophe.
Mercury As Harmful Pseudo Cure
- Mercury treatments were widely used because they sometimes seemed therapeutic but are highly toxic and often caused severe side effects like tooth loss, hair loss, and poisoning.
- Olivarius compares mercury to crude chemotherapy where physicians tried to find a therapeutic point between benefit and fatal toxicity.
Balance Enlistment With Contagion Risks
- Balance screening and recruitment by acknowledging venereal disease can be contagious while maintaining enlistment levels; medical examiners struggled to exclude all infected recruits.
- Olivarius shows the army prioritized manpower so many with non-obvious infections still entered service.


