Schmallenberg virus (SBV) has been identified in Germany in November 2011. Metagenomic analysis of samples taken from adult cattle allowed to establish its close relationship with Akabane, Aino and Shamonda viruses. The main clinical signs in adult cattle are fever and a significant drop of milk yield for several days, in some cases also diarrhoea and abortions. A congenital arthrogyposis/hydranencephaly syndrome is also described in lambs, kids and calves. The infection is considered as non contagious, most likely propagated among ruminants by biting midges of the genus Culicoides. Clinical cases were reported in adult cattle in Germany and the Netherlands since summer 2011, and congenital affections with SBV detection since December, first from Germany, the Netherlands and Belgium, then United-Kingdom and France, and more recently in Italy, Luxembourg and Spain. So far SBV was most frequently diagnosed using real-time quantitative polymerase chain reaction. Serological tests have been developed recently. Zoonotic risk cannot be excluded but is considered unlikely. SBV emergence is a major event in animal health and is a new challenge for European veterinarians and researchers.
|Number of pages||18|
|Journal||Annales de Médecine Vétérinaire|
|Publication status||Published - 1 Jan 2012|