Viral haemorrhagic disease of rabbits in Mexico : epidemiology and viral characterization

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Abstract
A fatal disease of rabbits was first reported in the People's Republic of China in 1984. Since 1986, the disease has been reported in most countries of Europe and in the Republic of Korea. In 1989 a similar disease, presumably linked to the importation of rabbit meat from the People's Republic of China, spread rapidly through ten states in Mexico; it was eradicated during the same year by "stamping-out" measures. In Mexico, as was the case in other outbreaks, morbidity and mortality reached 80-90% with few clinical signs. In pathogenesis studies, the primary sites of replication were in the small intestinal crypt and villous epithelium, hepatocytes and splenic lymphocytes. Many organs, including the lung and kidney, contained acutely infarcted tissue and haemorrhages resulting from a terminal disseminated intravascular coagulopathy. The disease and the characteristics of the virus isolated in Mexico are similar to isolates from Europe and the Republic of Korea. The comparative morphologic, from Europe and the Republic of Korea. The comparative morphologic, immunologic, and in situ nucleic acid hybridization evidence for a parvovirus aetiology are summarized.

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