Recently, there have been 4 cases of vesicular disease observed in unrelated diagnostic case submissions (3 cases from exhibition swine in Iowa, 1 case from a commercial finishing operation in South Dakota) at the ISU-VDL since July 28, 2015. Foreign animal disease investigations were initiated and samples all tested negative to FMDV, but positive to Senecavirus A. Other vesicular diseases have been ruled out as well. AASV originally reported on the presence of Seneca Valley Virus in October 2012. That article describing the clinical presentation associated with earlier introductions can be accessed on the AASV website. In addition, Drs. Chris Rademacher, Darin Madson, Rodger Main, KJ Yoon, Daniel Linhares, and AJ Smit at Iowa State University Veterinary Diagnostic Lab have compiled a fact sheet entitled Senecavirus A (Seneca Valley Virus) in Swine describing the virus and clinical presentation of the recent cases. This document can be viewed on the AASV website by clicking here.
Source: AASV