摘要
The re-emergence of Ebola viral disease （EVD） in West Africa has caused an international alarm, even panic. As of August 27th, 2014, the Ebola virus （EBOV） has infected 3069 people with 1552 death cases starting from December 2013 （http：//www.who.int/csr/don/2014 08 28 ebola/en/）. Recently, an outbreak of Ebola hemorrhagic fever in the north of Congo （Democratic Republic） has been confirmed besides Guinea, Liberia, Sierra Leone and Nigeria. So far the epidemic has not been effectively controlled.
The re-emergence of Ebola viral disease（EVD）in West Africa has caused an international alarm,even panic.As of August 27th,2014,the Ebola virus（EBOV）has infected3069 people with 1552 death cases starting from December2013（http://www.who.int/csr/don/20140828ebola/en/）.Recently,an outbreak of Ebola hemorrhagic fever in the north of Congo（Democratic Republic）has been
