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New discoveries about the cause of the plague epidemic

Justinian plague in ancient times, black plague in the Middle Ages, the world garment in the years 1890-1910 … The most scary pandemic has become devastating since the time (see box). And this night is even deeper than thought so far.

A scientific team has actually identified the disease as a cause of death on bodies buried in the Samara (Russia) region, between Moscow and Russia. Kazakh border, since 3 800 years. "It takes 1000 years away from the assumed age of bubonic plague," they said in a study published Friday in the journal Nature Communications.

This team of twelve researchers (*) showed that the found organs had given birth to the bacterium Yersinia pestis, the same strain that will then cause major epidemics. "This tribe is the oldest sequence to date containing the virulence factors considered to be characteristic of bubonic fever," they confirm in a statement from the Max Planck Institute for Human History in Jena (Germany)

  The bodies of two adults buried for 3,800 years since the Samara region has given birth to the bacterium Yersinia pestis. - © VV Kondrashin and VA Tsybin; Spyrou et al. 2018.
The bodies of two adults buried in the Samara region 3,800 years ago led to the bacterium Yersinia pestis – © VV Kondrashin and VA Tsybin, Spyrou et al., 2018.

show that in the Bronze Age – the time when these two died – "There were at least two lines of plague circulated in a contemporary way" in Eurasia. [19659007] A cruel twelve of the five Continents

It is estimated that the Justinian plague, which struck Europe and East in the 6th and 8th centuries, killed between 25 and 100 million – old texts mention 5000 deaths one then g in the only city in Constantinople During the Middle Ages, under the name of black death, it decimated from 30 to 50% of the European population for five years (1347-1352) and made almost 25 million victims.

The pandemic left the Chinese plague Hong Kong in 1984 before reaching 77 of the five Madagascar, Japan and Portugal, battled in 1899, Sydney and San Francisco the following year, since Java 1910, Ceylon 1914 and France in 1920. It was attributed to a dozen million deaths. [19659009ReceivedSatisfiedTimePointJeriniaPestacyAcquiredOfficeOfficeVectorsTransfersCustomersAccordingBacillusGenometsCompetitiveDepressedOffersOffersOnlyCommissionedOfficeEnglishEverywhereFor4000thCentury

A Pest That Still Was not Eradicated

The Pest, a Previous Pest? Sorry, no. The American scientist Thomas Butler has registered 21,725 ​​plague cases worldwide between 2000 and 2009, including 1,612 deaths, mainly in "African countries affected by poverty and anxiety", led by the Democratic Republic of the Congo. From 2010 to 2015, the WHO reported 3 248 new cases, including 584 deaths.

And recently, in August 2017, the World Health Organization (WHO) issued the plague epidemic. "Unmatched" who hit Madagascar at least 124 deaths. Although earlier outbreaks were mainly related to bubonic plague (transmitted by infected fleas, EdR) in rural areas, the 2017 epidemic was linked to pulmonary disease from city to person.

The bully remains a particularly dangerous disease with a mortality rate of 30% to 60% in its bubble form. In the absence of treatment, it is almost always lethal in its lung form

Jean-Michel Gradt

(*) Maria A. Spyrou, Rezeda I. Tukhbatova, Chuan-Chao Wang, Aida Andrades Valtueña, Aditya K. Lankapalli, Vitaly V. Kondrashin, Victor A. Tsybin, Aleksandr Khokhlov, Denise Kuhnert, Alexander Herbig, Kirsten I. Bos & Johannes Krause

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