How Many People Have Lice?

We’re back with our first episode of Season 5, and we’re starting off with a bang! Epidemic typhus, that friend of war and famine, may have caused more wartime deaths than all battles combined, and though it may seem like a disease relegated to the past, typhus only needs a minor disruption to turn it into a scourge of the present. In this epic season opener, we turn our sights to the louse-transmitted Rickettsia prowazekii, first diving into the strange and terrible biology of this bacterium before exploring the deep history of this tiny but mighty pathogen. The vast story of typhus takes us on a journey on a ‘coffin ship’ of the Great Irish Famine, through musings of the origins of human body and head lice, to German-occupied Poland during WWII with tales of vaccine sabotage and lice feeding, and finally to the present day, where we discuss the very real threat that epidemic typhus continues to pose. Check out this episode for all you ever wanted to know about epidemic typhus and more!

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