The Deadly Puzzle of Yellow Fever

June 15, 1865. German-American statesman Carl Schurz is traveling to Washington to meet with President Andrew Johnson when he stops at a friend’s home in Philadelphia. That night, during a séance, a teenage medium claims to summon the spirit of Abraham Lincoln… and delivers Schur ...  Show more

June 8, 1191. The Crusaders and Muslim forces are locked in battle over the city of Acre. On one side is Saladin, the great Muslim leader who has already recaptured Jerusalem. On the other, an armada arrives carrying England’s king: Richard the Lionheart.The Crusades will become ...  Show more

“It’s like these men are being held in a bubble as science marches forward.” Mike tells Sarah how one of history's most unethical experiments came crashing down. Digressions include the history of penicillin, the power of TV movies and the mysterious diagnosis of "Sa ...

Carnival hits the streets in Rio de Janeiro, Brazil this week. As well as preparations for the crowds and colourful processions, health authorities have also been putting in extra measures to try to contain a huge outbreak of dengue fever. Last week a health emergency was declare ...  Show more

Scarlet fever is treatable with antibiotics, but in the middle of the 19th century, it was the leading cause of death in children in some parts of the world. Today, there are several ongoing mysteries about the disease.

Research:

This episode is brought to you by Wondery in partnership with National Geographic in anticipation of their new series, The Hot Zone. The three-night limited series is inspired by true events surrounding the origins of the Ebola virus and its arrival on US soil in 1989. One hundre ...  Show more