Tag: Treponema pallidum

How Penicillin Changed the Course of STI Treatment in the Mid-20th Century

Feb 18 2026 / History & Culture

Penicillin revolutionized STI treatment in the 1940s, turning syphilis from a deadly, untreatable disease into a curable infection. Its safety, speed, and lasting effectiveness reshaped public health and set the foundation for modern antibiotic therapy.