Top 10 deadly viruses in the world
china.org.cn / chinagate.cn by Lu Na, August 18, 2014 Adjust font size:
Plague
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Plague [news.takungpao.com] |
Plague, one of the three epidemic diseases reportable to the World Health Organization, is caused by the enterobacteria Yersinia pestis. It can be spread in the air or by direct contact. It is estimated that one particular outbreak of plague caused the deaths of about 30 percent of the population of Medieval Europe. It is treatable if detected early.
