Serological Evidence for Schmallenberg Virus Infection in Sheep of Portugal 2014

Esteves, Fernando; Mesquita, João R.; Vala, Helena; Abreu-Silva, Joana; Poel, W.H.M. Van Der; Nascimento, Maria S.J.


Between November and December of 2014, a serosurvey was set up to evaluate the presence of Schmallenberg virus (SBV) antibodies in sheep of Portugal. Sera (n = 1068) were tested using an indirect enzyme linked immunosorbent assay (ID Screen® Schmallenberg virus indirect, IDvet Innovative Diagnostics Montpellier, France). The estimated occurrence of immunogobulin G (IgG) antibodies against SBV in sheep of Portugal was 12.8% (95% confidence interval 11.0-15.0%). This is the first study reporting the presence of SBV antibodies in sheep of Portugal.