Gene expression in lymph nodes of PRRSV-infected pigs

The aim of this study was to acquire a better understanding of PRRS disease through a deeper knowledge of gene expression changes that occur in pulmonary lymph nodes during acute comparative porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus…

Mechanisms of Failed Protection Against PRRS in Sow Herds

Serum inoculation of gilts with on-farm isolates is used to protect endemically infected sow herds against reproductive PRRS. However, outbreaks still occur in which the offending virus is genetically similar to the inoculation virus across the entire genome, raising the…

Genetic and antigenic characterization of a recent PRRSV isolate

Porcine reproductive and respiratory syndrome virus (PRRSV) NC16845 was isolated from porcine tissue submitted to the Iowa State University Veterinary Diagnostic Laboratory in 2006. The isolate originated from twelve-week-old pigs from North Carolina exhibiting lethargy, coughing, respiratory distress and weight…