Titlebook: Virus Variability, Epidemiology and Control; Edouard Kurstak,R. G. Marusyk,M. H. V. Regenmortel Book 1990 Springer Science+Business Media

DEI

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Acquired Immunodeficiency Syndrome20,069 cases reported from the North American continent and with 29,725, 40,519, 511, and 1,596 cases respectively from Europe, Africa, Asia and Australia. Countrywise, the United States tops the list with 117,781 reported cases, followed by Brazil, France, Uganda, Kenya, Tanzania, Italy, and Zaire

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Visna Virus Genomeat simultaneously appeared with several chronic pneumonic diseases affecting sheep in Iceland (Sigurdsson, 1954, 1957; Sigurdsson and Palsson, 1958). Visna means “wasting” in Icelandic and became the name of the disease because of the progressive emaciation that accompanied the neural pathology and