From Live Science:A 4,000-year-old skeleton found in India bears the earliest archaeological evidence of leprosy, a new study reports.
The finding, detailed in the May 27 issue of the online journal PLoS ONE, is also the first evidence for the disease in prehistoric India and sheds light on how the disease might have been spread in early human history.
Though it is no longer a significant public health threat in most parts of the world, leprosy is still one of the least understood infectious diseases, in part because the bacteria that causes it (Mycobacterium leprae) is difficult to culture for research and has only one other animal host, the nine banded armadillo.
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