Episode 470 - The Vaccinators, Part 2

If the first translation of a text on smallpox vaccination in Japan was finished in 1820, how did it take another 29 years for the first mass vaccination campaigns to begin? The answers involve everything from a German doctor accused of being a spy to networks of physicians trying to navigate obscure bureaucracy. And they might remind you more of the last few years than you'd think. Show notes here.