Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies

Autores
Cappuccio, Javier Alejandro; Dibarbora, Marina; Lozada, Inés; Quiroga, María Alejandra; Olivera, Valeria; Dángelo, Marta; Pérez, Estefanía Marisol; Barrales, Hernán; Perfumo, Carlos Juan; Pereda, Ariel; Pérez, Daniel R.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Swine farms provide a dynamic environment for the evolution of influenza A viruses (IAVs). The present report shows the results of a surveillance effort of IAV infection in one commercial swine farm in Argentina. Two cross-sectional serological and virological studies (n = 480) were carried out in 2011 and 2012. Virus shedding was detected in nasal samples from pigs from ages 7,21 and 42-days old. More than 90% of sows and gilts but less than 40% of 21-days old piglets had antibodies against IAV. Inaddition, IAV was detected in 8/17 nasal swabs and 10/15 lung samples taken from necropsied pigs. A subset of these samples was further processed for virus isolation resulting in 6 viruses of the H1N2 subtype (δ2 cluster). Pathological studies revealed an association between suppurative bronchopneumonia and necrotizing bronchiolitis with IAV positive samples. Statistical analyses showed that the degree of lesions in bronchi, bronchiole, and alveoli was higher in lungs positive to IAV. The results of this study depict the relevance of continuing long-term active surveillance of IAV in swine populations to establish IAV evolution relevant to swine and humans.
Facultad de Ciencias Veterinarias
Materia
Veterinaria
influenza
swine
Argentina
virology
serology
pathology
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/111233
Acceder
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network_name_str SEDICI (UNLP)
spelling Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studiesCappuccio, Javier AlejandroDibarbora, MarinaLozada, InésQuiroga, María AlejandraOlivera, ValeriaDángelo, MartaPérez, Estefanía MarisolBarrales, HernánPerfumo, Carlos JuanPereda, ArielPérez, Daniel R.VeterinariainfluenzaswineArgentinavirologyserologypathologySwine farms provide a dynamic environment for the evolution of influenza A viruses (IAVs). The present report shows the results of a surveillance effort of IAV infection in one commercial swine farm in Argentina. Two cross-sectional serological and virological studies (n = 480) were carried out in 2011 and 2012. Virus shedding was detected in nasal samples from pigs from ages 7,21 and 42-days old. More than 90% of sows and gilts but less than 40% of 21-days old piglets had antibodies against IAV. Inaddition, IAV was detected in 8/17 nasal swabs and 10/15 lung samples taken from necropsied pigs. A subset of these samples was further processed for virus isolation resulting in 6 viruses of the H1N2 subtype (δ2 cluster). Pathological studies revealed an association between suppurative bronchopneumonia and necrotizing bronchiolitis with IAV positive samples. Statistical analyses showed that the degree of lesions in bronchi, bronchiole, and alveoli was higher in lungs positive to IAV. The results of this study depict the relevance of continuing long-term active surveillance of IAV in swine populations to establish IAV evolution relevant to swine and humans.Facultad de Ciencias Veterinarias2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf110-115http://sedici.unlp.edu.ar/handle/10915/111233enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0147957116301266info:eu-repo/semantics/altIdentifier/issn/0147-9571info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cimid.2016.12.005info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:57:50Zoai:sedici.unlp.edu.ar:10915/111233Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:57:51.153SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
title Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
spellingShingle Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
Cappuccio, Javier Alejandro
Veterinaria
influenza
swine
Argentina
virology
serology
pathology
title_short Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
title_full Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
title_fullStr Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
title_full_unstemmed Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
title_sort Two years of surveillance of influenza a virus infection in a swine herd : Results of virological, serological and pathological studies
dc.creator.none.fl_str_mv Cappuccio, Javier Alejandro
Dibarbora, Marina
Lozada, Inés
Quiroga, María Alejandra
Olivera, Valeria
Dángelo, Marta
Pérez, Estefanía Marisol
Barrales, Hernán
Perfumo, Carlos Juan
Pereda, Ariel
Pérez, Daniel R.
author Cappuccio, Javier Alejandro
author_facet Cappuccio, Javier Alejandro
Dibarbora, Marina
Lozada, Inés
Quiroga, María Alejandra
Olivera, Valeria
Dángelo, Marta
Pérez, Estefanía Marisol
Barrales, Hernán
Perfumo, Carlos Juan
Pereda, Ariel
Pérez, Daniel R.
author_role author
author2 Dibarbora, Marina
Lozada, Inés
Quiroga, María Alejandra
Olivera, Valeria
Dángelo, Marta
Pérez, Estefanía Marisol
Barrales, Hernán
Perfumo, Carlos Juan
Pereda, Ariel
Pérez, Daniel R.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Veterinaria
influenza
swine
Argentina
virology
serology
pathology
topic Veterinaria
influenza
swine
Argentina
virology
serology
pathology
dc.description.none.fl_txt_mv Swine farms provide a dynamic environment for the evolution of influenza A viruses (IAVs). The present report shows the results of a surveillance effort of IAV infection in one commercial swine farm in Argentina. Two cross-sectional serological and virological studies (n = 480) were carried out in 2011 and 2012. Virus shedding was detected in nasal samples from pigs from ages 7,21 and 42-days old. More than 90% of sows and gilts but less than 40% of 21-days old piglets had antibodies against IAV. Inaddition, IAV was detected in 8/17 nasal swabs and 10/15 lung samples taken from necropsied pigs. A subset of these samples was further processed for virus isolation resulting in 6 viruses of the H1N2 subtype (δ2 cluster). Pathological studies revealed an association between suppurative bronchopneumonia and necrotizing bronchiolitis with IAV positive samples. Statistical analyses showed that the degree of lesions in bronchi, bronchiole, and alveoli was higher in lungs positive to IAV. The results of this study depict the relevance of continuing long-term active surveillance of IAV in swine populations to establish IAV evolution relevant to swine and humans.
Facultad de Ciencias Veterinarias
description Swine farms provide a dynamic environment for the evolution of influenza A viruses (IAVs). The present report shows the results of a surveillance effort of IAV infection in one commercial swine farm in Argentina. Two cross-sectional serological and virological studies (n = 480) were carried out in 2011 and 2012. Virus shedding was detected in nasal samples from pigs from ages 7,21 and 42-days old. More than 90% of sows and gilts but less than 40% of 21-days old piglets had antibodies against IAV. Inaddition, IAV was detected in 8/17 nasal swabs and 10/15 lung samples taken from necropsied pigs. A subset of these samples was further processed for virus isolation resulting in 6 viruses of the H1N2 subtype (δ2 cluster). Pathological studies revealed an association between suppurative bronchopneumonia and necrotizing bronchiolitis with IAV positive samples. Statistical analyses showed that the degree of lesions in bronchi, bronchiole, and alveoli was higher in lungs positive to IAV. The results of this study depict the relevance of continuing long-term active surveillance of IAV in swine populations to establish IAV evolution relevant to swine and humans.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/111233
url http://sedici.unlp.edu.ar/handle/10915/111233
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0147957116301266
info:eu-repo/semantics/altIdentifier/issn/0147-9571
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cimid.2016.12.005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
110-115
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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