Surveillance of Schmallenberg virus in cattle populations in Northeastern Brazil.

The objective of this study was to conduct a serological investigation of Schmallenberg virus (SBV) infection in cattle raised in the State of Alagoas. A total of 460 serum samples from the Agricultural Defense Agency of Alagoas (ADEAL) serum bank were analyzed. These samples were collected from unvaccinated cattle on 100 properties across 99 municipalities in Alagoas, representing the three mesoregions: Agreste, Leste, and Sertão.

Factors associated with small ruminant lentivirus infection in goat herds from Pernambuco state, Northeast region of Brazil.

Serum samples (n = 1532) were collected between May 2011 to April 2012 from goats from 76 herds (49 from dairy farms and 27 herds for genetic improvement) from three geographical regions from the state of Pernambuco, Brazil: Zona da Mata, Agreste, and Sertão. Samples were processed using agar gel immunodiffusion test, with p28 CAEV antigen. The objective was to determine the risk factors for small ruminant lentivirus (SRLV) in dairy goats and goats with high genetic value.