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The first clinical cases of Schmallenberg virus infection diagnosed in a dead calf and five aborted lambs from flocks in north-western Poland between November 2012 and January 2013 are described. An epizootic investigation made it possible to determine that an SBV infection, which resulted in the first clinical case in the cattle herd from the West Pomerania, probably occurred in the spring of 2012...
Equine arteritis virus (EAV) belongs to the family Arteriviridae of the order Nidovirales. The viral genome composed by single-stranded positive sense RNA is enclosed in a icosahedral nucleocapsid and surrounded by a proteolipid envelope. The genome consists of nine open reading frames (ORFs) coding both structural and non-structural proteins. Although only one serotype of EAV is distinguished, field...
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