"Black Death" poses a new threat

The plague, which once devastated the population of Europe, is on the rise again, according to experts. Around 100-200 cases are reported annually, but the disease is cropping up in new locations.

Michael Begon, an ecologist at the University of Liverpool, one of the experts concerned about the plague recently wrote: "Although the number of human cases of plague is relatively low, it would be a mistake to overlook its threat to humanity, because of the disease's inherent communicability, rapid spread, rapid clinical course, and high mortality if left untreated," Begon and his colleagues have written an article for Public Library of Science journal PloS Medicine.