If you were asked to describe necrotizing fasciitis in three words, you might choose: rapid, deadly, and rare. The third of those adjectives may provide some comfort, but the first two are the clear inspiration for this infection’s more lurid nickname: flesh-eating bacteria. In this episode, we get up close and personal with necrotizing fasciitis and its causative agents. We start off by examining step by step how these infections wreak so much havoc and why doctors still struggle with its treatment. Then we take a tour through its grisly history, featuring maritime misadventures and wicked war wounds. We wrap up the story with a look at the global trends in these infections as well as some promising new research. This episode may not be for the faint of heart, but it is for the endlessly curious.

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It’s the stuff nightmares are made of. A fly lands on an open wound and lays hundreds of eggs, from which hatch countless ravenous maggots. There they writhe, devouring flesh, insatiable and relentless. Every minute they dig deeper and deeper until flesh gives way to bone. Even the species name of these maggots inspires a shiver of fear: Cochliomyia hominivorax - “man eater”. This nightmare of a fly is the horrifying reality for many mammals in South America and some Caribbean islands, particularly cattle. And it seems to be making a comeback in the places it was previously eradicated - Central and North America. What exactly this fly does, why it’s such a problem, and how we came to defeat it (temporarily) all feature in this week’s episode. Sterile flies? Archival footage? Gnarly descriptions? This episode has it all.

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Science doesn’t always get it right the first time (or the second, or the third, or even the ninety-ninth!). And while we may chuckle at the outlandish things people believed or the goofy experiments they tried, we forget two things: 1) those failures helped us get where we are today and 2) a hundred years from now, people will probably be laughing at the “cutting edge” medical knowledge of today! In this week’s book club episode, Erin and I chat with two of our all-time favorite science communicators, Dr. Lindsey Fithzarris and Adrian Teal to discuss their newest book Dead Ends!: Flukes, Flops & Failures That Sparked Medical Marvels. This hilarious and insightful book, geared towards middle-school readers (but enjoyable for all ages!), frolicks through some of the strangest stories in the history of medicine, accompanied by delightfully grotesque illustrations. There’s learning, there’s laughter, but most importantly, there’s a lesson: failure is okay. Not just okay but a necessary part of science. Tune in for all this and more!

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