Futility Closet, a podcast about historical stories long forgotten, talks about the Balmis Expedition. We covered the expedition in a previous blog post in Spanish. The first 15 minutes or so of the podcast cover the expedition. Enjoy...
https://www.youtube.com/watch?v=CkZ08-Lyi3A
We highly recommend subscribing to Futility Closet if you're into history and the stories that you were not necessarily told about in school.