Plague, a disease that affects humans and other mammals, is caused by a bacteria called Yersinia pestis. A new study has revealed that plague may have persisted long-term in Europe from the 14th to 17th century in an unknown reservoir.
Some researchers suggest that it may have been a result of a viral disease. However, the most recent research on ancient plague reveals that the deadly disease existed thousands of years earlier than previously thought.
‘The most recent research on ancient plague reveals that the deadly disease existed thousands of years earlier than previously thought.’
AdvertisementIn addition to the assumed continuous re-introduction of Yersinia pestis from central Asia in multiple waves during the second pandemic, it's also possible that Yersinia pestis persisted long-term in Europe in a yet unknown reservoir host, said lead author Lisa Seifert from the Ludwig Maximilian University of Munich in Germany.
In the study, researchers recovered and analyzed ancient DNA from 30 plague victims of the second plague pandemic.
They were excavated from two different burial sites in Germany, and spanning more than 300 years.
Of the 30 skeletons tested, eight were positive for Yersinia pestis-specific nucleic acid.
All positive individuals genetic material were highly similar to previously investigated plague victims from other European countries and had identical Yersinia pestis genotype.
The study was published in PLOS ONE.
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