Tag: human history

Gene detectives place Yersinia pestis at the scene of Plague Pandemics of yore

In the first part, I described the Gram-negative bacillus Yersinia pestis as the etiological agent of human and animal disease; in part deux, I detailed the three major plague pandemics that have devastated human civilization many a times – the modern incarnation of which, complete with medical and epidemiological records, is known to have been caused by Yersinia pestis. In this third and final part, let me tell you about the ancient pandemics.

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