Black death: DNA in teeth from 6 centuries reveals where the epidemic started, says the study – June 16, 2022.

Black death: DNA in teeth from 6 centuries reveals where the epidemic started, says the study – June 16, 2022.

Researchers believe they have discovered the origins of a disease that wiped out millions of people in the 14th century.

Researchers believe they discovered the origins of the Black Death, more than 600 years after it killed tens of millions of people in Europe, Asia and North Africa.

The health catastrophe from the middle of the 14th century is one of the most important chapters of the pandemic in human history.

But despite years of research, scientists have not yet been able to determine where the bubonic plague began.

Now the analysis shows that it was in Kyrgyzstan, Central Asia, in the 1330s.

A research team from the University of Stirling in Scotland and the Max Planck Institute and the University of Tübingen in Germany analyzed ancient DNA samples from the teeth of bodies buried in cemeteries near Lake Issyk Kul in Kyrgyzstan.

They chose this region after noticing a significant increase in burials that took place there in 1338 and 1339.

Maria Spyrou, a researcher at the University of Tübingen, said the team sequenced the DNA of seven skeletons.

They analyzed the teeth because, according to Spyrou, they contain many blood vessels and offer researchers “a great chance to detect blood-borne pathogens that may have caused the death of individuals.”

The research team was able to find the plague bacterium, Yersinia pestisin three of them.

“Our study addresses one of the biggest and most fascinating questions in history and determines when and where the most notorious and notorious murderer began,” said Philip Slavin, a historian at the University of Stirling, about the discovery.

The research, however, has some limitations, including the small sample size.

Michael Knapp of the University of Otago in New Zealand, who was not involved in the study, praised the work as “really worthwhile”, but noted:

“Data from many more individuals, times and regions … would really help clarify what the data presented here really means.”

The researcher’s work was published in the scientific journal Nature, with the following title: “The Source of the Black Death in Central Eurasia in the Fourteenth Century”.

What is bubonic plague?

Plague is a potentially deadly infectious disease caused by the so-called bacterium Yersinia pestis which lives on some animals – mostly rodents – and on fleas that carry in their fur.

Bubonic plague is the most common form of disease that people can get. The name comes from the symptoms it causes, a painful swelling in the lymph nodes, which forms a kind of bubble, known as a “bug”, in the groin or armpit.

From 2010 to 2015, 3,248 cases were reported worldwide, including 584 deaths.

Historically, it was also called Black Death, due to the fact that it causes gangrene in certain parts of the body, such as the fingers and toes, which eventually turn black.

– This text was originally published at https://www.bbc.com/portuguese/geral-61813064

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