"In 1847, a doctor at Vienna General Hospital cut the maternity ward death rate from 18% to 2% by requiring handwashing in chlorinated lime solution. The medical establishment repaid him with years of ridicule and eventually committed him to an asylum" https://boingboing.net/2026/04/07/the-doctor-who-proved-handwashing-saves-lives-was-locked-in-an-asylum-for-it.html