A szarvasmarha vírusos hasmenését okozó vírus és az általa okozott kórképek vizsgálata

Abstract

Bovine viral diarrhoea is a viral disease appearing in various forms and causing high economic losses in the cattle stocks. The BVD virus belongs to the Flaviviridae family, Pestivirus genus, with ssRNA genome, which has one open reading frame. The virus has cytopathogen and non-cytopathogen biotypes and causes various forms of diseases in cattle from unapparent infection, through diarrhoea and abortion to persistent infection and fatal mucosal disease.