Rare form of leprosy infected people in Americas before European arrival, 4,000-year-old bones suggest
2 4,000-year-old skeletons from Chile consisted of Mycobacterium lepromatosisa pathogen that triggers leprosy. (Image credit: Oscar Eduardo Fontana-Silva and Anna Brizuela) Bones from 4,000-year-old human skeletons found in Chile include…
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