Senecavirus A seroprevalence and risk factors in United States pig farms
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Author
Preis, Guilherme
Sanhueza, Juan M.
Vannucci, Fabio A.
Culhane, Marie R.
Corzo, Cesar A.
Publication date
2022-10-20ISSN
2297-1769
Abstract
Senecavirus A (SVA) is a non-enveloped, single-stranded, positive-sense RNA
virus belonging to the Picornaviridae family. Senecavirus A is constantly
associated with outbreaks of vesicular disease in pigs and has been reported
in several countries since its first large-scale outbreak in 2014. Senecavirus A’s
clinical disease and lesions are indistinguishable from other vesicular foreign
animal diseases (FAD). Therefore, an FAD investigation needs to be conducted
for every SVA case. For this reason, SVA has been attributed as the cause of
an alarming increase in the number of yearly FAD investigations performed
by the United States Department of Agriculture (USDA). The objectives of this
study were to estimate the seroprevalence of SVA antibodies in breeding and
growing pig farms in the United States and to determine the farm-level risk
factors associated with seropositivity. A total of 5,794 blood samples were
collected from 98 and 95 breeding and growing pig farms in 17 states. A farm
characteristics questionnaire was sent to all farms, to which 80% responded.
The responses were used to conduct logistic regression analyses to assess
the risk factors associated with SVA seropositivity. The estimated farm-level
seroprevalences were 17.3% and 7.4% in breeding and growing pig farms,
respectively. Breeding farms had 2.64 times higher odds of SVA seropositivity
than growing pig farms. One key risk factor identified in breeding farms was
the practice of rendering dead animal carcasses. However, the adoption of a
higher number of farm biosecurity measures was associated with a protective
eect against SVA seropositivity in breeding farms.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
619 - Veterinary science
Pages
9
Publisher
Frontiers Media
Is part of
Frontiers in Veterinary Science
Citation
Preis, Guilherme, Juan M. Sanhueza, Carles Vilalta, Fabio A. Vannucci, Marie R. Culhane, and Cesar A. Corzo. 2022. "Senecavirus A Seroprevalence And Risk Factors In United States Pig Farms". Frontiers In Veterinary Science 9. doi:10.3389/fvets.2022.1011975.
Program
Sanitat Animal
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- ARTICLES CIENTÍFICS [2555]
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