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Senecavirus A seroprevalence and risk factors in United States pig farms

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. Seneca...

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Autores principales: Preis, Guilherme, Sanhueza, Juan M., Vilalta, Carles, Vannucci, Fabio A., Culhane, Marie R., Corzo, Cesar A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9631314/
https://www.ncbi.nlm.nih.gov/pubmed/36337199
http://dx.doi.org/10.3389/fvets.2022.1011975
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author Preis, Guilherme
Sanhueza, Juan M.
Vilalta, Carles
Vannucci, Fabio A.
Culhane, Marie R.
Corzo, Cesar A.
author_facet Preis, Guilherme
Sanhueza, Juan M.
Vilalta, Carles
Vannucci, Fabio A.
Culhane, Marie R.
Corzo, Cesar A.
author_sort Preis, Guilherme
collection PubMed
description 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 effect against SVA seropositivity in breeding farms.
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spelling pubmed-96313142022-11-04 Senecavirus A seroprevalence and risk factors in United States pig farms Preis, Guilherme Sanhueza, Juan M. Vilalta, Carles Vannucci, Fabio A. Culhane, Marie R. Corzo, Cesar A. Front Vet Sci Veterinary Science 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 effect against SVA seropositivity in breeding farms. Frontiers Media S.A. 2022-10-20 /pmc/articles/PMC9631314/ /pubmed/36337199 http://dx.doi.org/10.3389/fvets.2022.1011975 Text en Copyright © 2022 Preis, Sanhueza, Vilalta, Vannucci, Culhane and Corzo. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Veterinary Science
Preis, Guilherme
Sanhueza, Juan M.
Vilalta, Carles
Vannucci, Fabio A.
Culhane, Marie R.
Corzo, Cesar A.
Senecavirus A seroprevalence and risk factors in United States pig farms
title Senecavirus A seroprevalence and risk factors in United States pig farms
title_full Senecavirus A seroprevalence and risk factors in United States pig farms
title_fullStr Senecavirus A seroprevalence and risk factors in United States pig farms
title_full_unstemmed Senecavirus A seroprevalence and risk factors in United States pig farms
title_short Senecavirus A seroprevalence and risk factors in United States pig farms
title_sort senecavirus a seroprevalence and risk factors in united states pig farms
topic Veterinary Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9631314/
https://www.ncbi.nlm.nih.gov/pubmed/36337199
http://dx.doi.org/10.3389/fvets.2022.1011975
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