Ep 76 Chickenpox: There's always a 'but'
This Podcast Will Kill You
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The Origins of Viruses
It wasn't until the 1940s that it was finally shown that chicken pox and zoster were caused by the same virus. The infectiousness of these diseases could be demonstrated, again, mostly through human volunteers. But what exactly was being transmitted remained a mystery for decades after the rise of germ theory.
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