Abstract:

A retrospective investigation of risk factors associated with loads of pigs positive for Senecavirus A at a midwestern US packing plant during the summer of 2017

Gustavo S. Silva, DVM, MS, PhD; Katyann Graham; Victoria Novak, MS; Derald J. Holtkamp, DVM, MS; Daniel C. L. Linhares, DVM, MBA, PhD

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This study describes a spatio-temporal cluster of Senecavirus A (SVA) outbreaks reported in a midwestern US slaughter plant during the summer of 2017. Data was collected on multiple site characteristics to conduct risk factor analysis. On June 8, 2017, 6 of 10 finishing pig lots delivered to the plant tested positive by reverse transcription-polymerase chain reaction for SVA RNA. Subsequently, 88 lots presented vesicular lesions at the plant, and 74 lots tested positive between June 8 and July 10, 2017, which was a significant temporal cluster.

Keywords: Senecavirus A, vesicular disease, market pigs, packing plants

Cite as: Silva GS, Graham K, Novak V, Holtkamp DJ, Linhares DCL. A retrospective investigation of risk factors associated with loads of pigs positive for Senecavirus A at a midwestern US packing plant during the summer of 2017. J Swine Health Prod 2020;28(2):87-92.

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