This 2011 episode from prior hosts Sarah and Deblina covers polio, a threat in the early 20th century that often left victims paralyzed or dead. Vaccines caused an immediate drop in polio cases and today have nearly eradicated the disease.

SYMHC Classics: Dr. Lucy Hobbs Taylor
29:58

Behind the Scenes Minis: Carry-on Bags
28:38

Gustave Flaubert and the ‘Madame Bovary’ Trial
45:15