What John Snow and cholera tell us about the COVID pandemic

It’s hard to imagine that someone could die from diarrhea. If you live in America today, you’ve likely never heard of anyone with cholera, and certainly never of anyone dying from diarrhea. Yet, in the middle of the nineteenth century, it was fairly commonplace. Medicine just wasn’t advanced at the time. Amputating limbs of fully-conscious human beings was only recently falling out of favor with the discovery of ether as …

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