"That Rotten Spot"

Check out our new season, dropping weekly on Tuesdays, starting September 15th. 

Alexis Pedrick joins Sam Jones and Deboki Chakravarti to bring you an episode from Tiny Matters, an award-winning podcast from the American Chemical Society produced by Multitude. The episode, which originally aired in February 2026, explores the surprising origins and evolution ...  Show more

When a deadly outbreak of bubonic plague hits San Francisco, a brilliant young bacteriologist named Joseph Kinyoun is tasked with stopping the spread. But as Kinyoun soon discovers, he is battling not just the disease, but a group of politicians more concerned about profits than ...  Show more

When the plague broke out again in the late 19th century, scientists dissected buboes, bodies, and fleas… and found the source of the Black Death. The disease had already killed millions throughout Europe and Asia. In 1900, it reached San Francisco. Learn more about your ad choic ...  Show more

When the plague broke out again in the late 19th century, scientists dissected buboes, bodies, and fleas… and found the source of the Black Death. The disease had already killed millions throughout Europe and Asia. In 1900, it reached San Francisco. Learn more about your ad choic ...  Show more

With plague spreading in San Francisco, Dr. Joseph Kinyoun faces fierce resistance from a city and state desperate to protect its image. Unwilling to back down, Kinyoun's (KIHN-yuunz) relentless efforts to contain the plague put him at odds with powerful opponents determined to s ...  Show more