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  • Title: [Ebola virus: what the practitioner needs to know].
    Author: Georges AJ, Baize S, Leroy EM, Georges-Courbot MC.
    Journal: Med Trop (Mars); 1998; 58(2):177-86. PubMed ID: 9791600.
    Abstract:
    The Ebola virus is an RNA virus of Filoviridae family. The earliest documented fatal epidemic of Ebola hemorrhagic occurred in 1976. There are four genetically different subtypes of Ebola virus. The virus remains in the blood for several weeks, can maintain its infectivity for several weeks at 20 degrees C outside the body, and survives for several weeks in corpses. Isolation of Ebola virus requires level 4 laboratory security conditions. Specimens are obtained by culturing mammal cells. Identification is achieved using reference serums. Serologic diagnosis is made using mainly ELISA technique for immunocapture of IgM or EBO Ag. The natural reservoir for Ebola virus is unknown. One possibility is that each isolated strain has a different reservoir. In recorded outbreaks, the index case has often had a history of contact with non-human primates. However since these animals are also highly sensitive to the virus, they cannot be considered as reservoirs but only as intermediate hosts. Transmission requires close contact such as occurs in association with health care, local customs, or funeral rites. In humans, infection causes hemorrhagic fever that progresses to diarrhea within 5 to 10 days. Recovery is observed in only 25% of cases. During outbreaks containment depends on implementation of simple precautions including isolation of suspected cases, appropriate protective clothing, disinfection with hypochlorite solutions, and proper waste disposal.
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