Ebola virus, also known as Ebola virus, is a virulent infectious virus that causes Ebola hemorrhagic fever in humans and primates and has a high mortality rate, between 50% and 90%, with the main causes of death being stroke, myocardial infarction, hypovolemic shock or multiple organ failure. Named after the Ebola River in the Democratic Republic of Congo, Africa (the country formerly known as Zaire), the virus is a generic term used to refer to a group of viruses belonging to the genus Ebola in the fiboviridae family. This virus comes from the “Filoviridae” family. “Ebola” is a filovirus, a very rare RNA virus, and its presence was discovered in 1976 in southern Sudan and in the Ebola River region of Zaire, now the Democratic Republic of Congo (DRC), causing widespread concern and attention in the medical community, and “Ebola ” hence the name. Ebola virus is a virulent virus that causes Ebola hemorrhagic fever in humans and primates. The Ebola hemorrhagic fever (EBHF) it causes is the most deadly viral hemorrhagic fever in the world today, and the symptoms of infected people are very similar to those of Marburg virus, which is also a member of the fibrovirus family, including nausea, vomiting, diarrhea, skin color change, generalized aches and pains, internal bleeding, external bleeding, and fever. Ebola is a zoonotic virus, usually caused by contact with body fluids, mucous membranes and skin. Despite painstaking research by the World Health Organization, no animal host capable of surviving an outbreak has been identified, and fruit bats are currently thought to be the likely original host of the virus. No vaccine has yet been proven to be effective. Due to its extremely high lethality, Ebola is classified by the Centers for Disease Control and Prevention as a weapon of the highest order of bioterrorism attack. In 1992, Japanese Aum Shinrikyo leader Akira Asahara led 40 members to Zaire in hopes of obtaining the virus as a tool for mass murder, but was unsuccessful in the end. The 2014 West African Ebola virus outbreak is a large-scale viral outbreak that began in West Africa in February 2014, initially in Guinea and then spread to Sierra Leone, Liberia, and Nigeria. The virus in this outbreak is the Saj ibola virus of the Ebola virus family, and the outbreak is the most severe since the discovery of the Ebola virus in 1976. There have been imported fatal cases and secondary infections in Spain and the United States. The World Health Organization announced a total of 8,997 cases/4,493 deaths as of Oct. 14. The outbreak was officially classified as a public health emergency of international concern on August 8, and the directive has only been issued twice in the past (for the 2009 H1N1 novel influenza outbreak and the 2014 polio outbreak) and requires 194 Member States to adopt statutory measures for disease prevention, surveillance, control and response.