Between 5,000 and 6,000 years ago, Neolithic farming communities in Europe are dramatically declined, and there is still no definitive answer as to why. Now, however, a team of researchers in Sweden has found a new strain of plague.
The research, published in the journal Cell, describes the discovery of the oldest known sample of plague bacteria ] She was buried in a grave passage in Gokhem, southern Sweden, with a crowd of 78 people from around the same time.
Scientists previously thought that the plague had arrived in Europe with migrants from the Eurasian steppe, who effectively moved in and replaced them with one another the Neolithic communities. The steppe is a belt of grassland that runs from modern day through Ukraine and Central Asia to east to China.
However, the discovery that the disease has arrived before the Eurasian migrants.
The study suggest that the plague started as a human disease in "mega-settlements" of 1
The pathogenic then spread throughout Europe along trade routes, made possible thanks to the development of technology as the wheel, the study said, rather than with mass migration. 19659004] "You can think of it as the Stone Age ending with a bang," Rasmussen said. Plague on decline in Madagascar, but 9 countries on alert ” data-src-mini=”//cdn.cnn.com/cnnnext/dam/assets/171113104717-02-madagascar-plague-small-169.jpg” data-src-xsmall=”//cdn.cnn.com/cnnnext/dam/assets/171113104717-02-madagascar-plague-medium-plus-169.jpg” data-src-small=”http://cdn.cnn.com/cnnnext/dam/assets/171113104717-02-madagascar-plague-large-169.jpg” data-src-medium=”//cdn.cnn.com/cnnnext/dam/assets/171113104717-02-madagascar-plague-exlarge-169.jpg” data-src-large=”//cdn.cnn.com/cnnnext/dam/assets/171113104717-02-madagascar-plague-super-169.jpg” data-src-full16x9=”//cdn.cnn.com/cnnnext/dam/assets/171113104717-02-madagascar-plague-full-169.jpg” data-src-mini1x1=”//cdn.cnn.com/cnnnext/dam/assets/171113104717-02-madagascar-plague-small-11.jpg” data-demand-load=”not-loaded” data-eq-pts=”mini: 0, xsmall: 221, small: 308, medium: 461, large: 781″ src=”data:image/gif;base64,R0lGODlhEAAJAJEAAAAAAP///////wAAACH5BAEAAAIALAAAAAAQAAkAAAIKlI+py+0Po5yUFQA7″/>