Scientists from Kazan Federal University and the Institute of science of history Max Planck (Germany) have made an analysis of the plague bacteria isolated from graves XIV-XVI centuries in Barcelona (Spain), Bulgaria (Tatarstan), Elvagene (Germany). The research results were published in Cell Host & amp magazine; Microbe.
After the analysis of the genomes of the three reconstructed historical plague pathogen (bacteria Yersinia pestis ), data were obtained on the close relationship between them. Furthermore, a comparative analysis with the modern pathogens has led researchers to conclude that the numerous historical and modern epidemic diseases are caused by the same strain of bacteria.
The main conclusion of the research results from the analysis of the plague bacteria from Bulgaria, situated on the territory modern Russia, – has been revealed his high similarity with the causative agent of plague from London period “black death”, and with modern bacteria. The analysis also showed that in China today, there are several “lines of plague”, and only one bacterium – Tatarstan – left Southeast Asia in the late XIX century and quickly spread throughout the world, causing a new epidemic. Thus, it is the culture of plague bacteria in Russia can be considered a progenitor of modern pathogens.
In the future, the researchers plan to detect plague penetration point in Europe, in more detail to restore the ways of its spread, as well as to study the effect of plague epidemics in the human populations at the genetic level.
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