Hemorrhagic fever is a natural focus disease caused by epidemic hemorrhagic fever virus. It is an acute viral infectious disease characterized by fever, bleeding tendency and kidney damage. Mainly distributed in Eurasia, it is an important infectious disease that harms human health. Hemorrhagic fever virus is mainly transmitted through mucous membrane and damaged skin. Since the mid-1980s, the annual incidence of hemorrhagic fever in China has exceeded 654.38 million. 20 1 1 At the end of the year, Qingdao, Shandong Province entered a period of high incidence of hemorrhagic fever, and as of February 27th, 40 cases had been diagnosed/kloc-0.

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