Secret leprosy infected the Americas before European arrival |...

Secret leprosy infected the Americas before European arrival

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Leprosy, long believed to have been introduced to the Americas by Europeans, has a more complex history. A recent study reveals that Mycobacterium lepromatosis, a leprosy-causing bacteria, existed in the Americas a thousand years before European settlement. This discovery, based on analyzing ancient remains from Canada and Argentina, highlights the diversity of pathogens and their relationship with humans.

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