Δευτέρα 27 Ιανουαρίου 2014

Devastating Plague Strains Arose Twice, Could Return

Scientists say that the two great bubonic plagues — the Black Death (14th century) and the Plague of Justinian (6th century) — aren't connected after all, and were caused by different bacterial strains.



via LiveScience.com http://ift.tt/1f4oQ91

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