Titlebook: Unconventional Agents and Unclassified Viruses; Recent Advances in B O.-R. Kaaden,W. Eichhorn,C.-P. Czerny Conference proceedings 1993 Spri

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Epidemiology of bovine spongiform encephalopathy and related diseasesnd reviewed during the course of the epidemic [13, 17, 20]. This paper provides a brief overview of the results of the epidemiological studies, but concentrates on the more recent features of the epidemic which are important in assessing the future course of the disease.

Exposure

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Molecular organization and replication of hepatitis E virus (HEV)etermined to be a new type of positive strand RNA virus. The complete sequencing of four different geographic isolates of the hepatitis E virus (HEV) has confirmed a similar genetic organization not previously recognized in nonenveloped positive strand RNA viruses. The ~7.5 kb RNA genome (including

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Variability of the envelope regions of HCV in European isolates and its significance for diagnostic published so far at least 4 genotypes can be distinguished. Partial sequences of additional HCV isolates indicate the existence of further genotypes. A serological typing is not yet possible. For detection of virus, reverse transcription and amplification of the 5′ non coding region is most commonly

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Molecular characterization of positive-strand RNA viruses: pestiviruses and the porcine reproductivecular analysis of two members of the genus pestivirus (hog cholera virus, HCV and bovine viral diarrhea virus, BVDV) and of the recently discovered porcine reproductive and respiratory syndrome virus (PRRSV). The first protein encoded within the single large pestivirus ORF is a nonstructural protein

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resilience

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