Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista do Instituto de Medicina Tropical de São Paulo |
Texto Completo: | https://www.revistas.usp.br/rimtsp/article/view/87660 |
Resumo: | The prevalence of antibodies against Equine Influenza Virus (EIV) was determined in 529 equines living on ranches in the municipality of Poconé, Pantanal area of Brazil, by means of the hemagglutination inhibition test, using subtype H3N8 as antigen. The distribution and possible association among positive animal and ranches were evaluated by the chi-square test, spatial autoregressive and multiple linear regression models. The prevalence of antibodies against EIV was estimated at 45.2% (95% CI 30.2 - 61.1%) with titers ranging from 20 to 1,280 HAU. Seropositive equines were found on 92.0% of the surveyed ranches. Equine from non-flooded ranches (66.5%) and negativity in equine infectious anemia virus (EIAV) (61.7%) were associated with antibodies against EIV. No spatial correlation was found among the ranches, but the ones located in non-flooded areas were associated with antibodies against EIV. A negative correlation was found between the prevalence of antibodies against EIV and the presence of EIAV positive animals on the ranches. The high prevalence of antibodies against EIV detected in this study suggests that the virus is circulating among the animals, and this statistical analysis indicates that the movement and aggregation of animals are factors associated to the transmission of the virus in the region. |
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Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal BrasileiroPREVALENCE OF ANTIBODIES AGAINST INFLUENZA VIRUS IN NON-VACCINATED EQUINES FROM THE BRAZILIAN PANTANALThe prevalence of antibodies against Equine Influenza Virus (EIV) was determined in 529 equines living on ranches in the municipality of Poconé, Pantanal area of Brazil, by means of the hemagglutination inhibition test, using subtype H3N8 as antigen. The distribution and possible association among positive animal and ranches were evaluated by the chi-square test, spatial autoregressive and multiple linear regression models. The prevalence of antibodies against EIV was estimated at 45.2% (95% CI 30.2 - 61.1%) with titers ranging from 20 to 1,280 HAU. Seropositive equines were found on 92.0% of the surveyed ranches. Equine from non-flooded ranches (66.5%) and negativity in equine infectious anemia virus (EIAV) (61.7%) were associated with antibodies against EIV. No spatial correlation was found among the ranches, but the ones located in non-flooded areas were associated with antibodies against EIV. A negative correlation was found between the prevalence of antibodies against EIV and the presence of EIAV positive animals on the ranches. The high prevalence of antibodies against EIV detected in this study suggests that the virus is circulating among the animals, and this statistical analysis indicates that the movement and aggregation of animals are factors associated to the transmission of the virus in the region.A prevalência de anticorpos para o vírus da Influenza Equina (VIE) no município de Poconé, MT. foi determinada em 529 equídeos pela técnica de Inibição da hemaglutinação utilizando como antígeno a variante H3N8 (SP/1/85). A distribuição da positividade e possíveis associações entre os animais e as propriedades foram avaliadas pelo teste do Qui-quadrado e pelos modelos espacial autoregressivo misto e de regressão linear múltipla. A prevalência de anticorpos para o VIE no município de Poconé foi estimada em 45,2% (IC 95% 30,2 - 61,1%) com títulos variando entre 20 e 1280UIH. Das fazendas analisadas 23 (92,0%) apresentaram animais soropositivos. Animais de fazendas não alagadas (66,5%) e negativos para Anemia Infecciosa Equina (AIE) (61,7%) foram associados a soropositividade. Não houve correlação espacial entre as fazendas estudadas, entretanto aquelas localizadas nas áreas não alagadas foram associadas à infecção. Observou-se correlação negativa entre a prevalência de anticorpos para o VIE e a presença de animais positivos para AIE nas propriedades. A elevada prevalência de anticorpos para o VIE detectada neste estudo sugere circulação viral ativa entre os animais, e as análises estatísticas indicam que o trânsito e aglomeração animal são fatores associados à transmissão do vírus na região.Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rimtsp/article/view/87660Revista do Instituto de Medicina Tropical de São Paulo; Vol. 56 No. 6 (2014); 487-492Revista do Instituto de Medicina Tropical de São Paulo; Vol. 56 Núm. 6 (2014); 487-492Revista do Instituto de Medicina Tropical de São Paulo; v. 56 n. 6 (2014); 487-4921678-99460036-4665reponame:Revista do Instituto de Medicina Tropical de São Pauloinstname:Instituto de Medicina Tropical (IMT)instacron:IMTenghttps://www.revistas.usp.br/rimtsp/article/view/87660/90614Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Pauloinfo:eu-repo/semantics/openAccessSilva, Lucas Gaíva EBorges, Alice Mamede Costa MarquesVillalobos, Eliana Monteforte CassaroLara, Maria do Carmo Custodio Souza HunoldCunha, Elenice Maria SiquetinOliveira, Anderson Castro Soares deBraga, Ísis AssisAguiar, Daniel Moura2015-07-22T19:09:56Zoai:revistas.usp.br:article/87660Revistahttp://www.revistas.usp.br/rimtsp/indexPUBhttps://www.revistas.usp.br/rimtsp/oai||revimtsp@usp.br1678-99460036-4665opendoar:2022-12-13T16:52:29.093431Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)true |
dc.title.none.fl_str_mv |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro PREVALENCE OF ANTIBODIES AGAINST INFLUENZA VIRUS IN NON-VACCINATED EQUINES FROM THE BRAZILIAN PANTANAL |
title |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro |
spellingShingle |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro Silva, Lucas Gaíva E |
title_short |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro |
title_full |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro |
title_fullStr |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro |
title_full_unstemmed |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro |
title_sort |
Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados do Pantanal Brasileiro |
author |
Silva, Lucas Gaíva E |
author_facet |
Silva, Lucas Gaíva E Borges, Alice Mamede Costa Marques Villalobos, Eliana Monteforte Cassaro Lara, Maria do Carmo Custodio Souza Hunold Cunha, Elenice Maria Siquetin Oliveira, Anderson Castro Soares de Braga, Ísis Assis Aguiar, Daniel Moura |
author_role |
author |
author2 |
Borges, Alice Mamede Costa Marques Villalobos, Eliana Monteforte Cassaro Lara, Maria do Carmo Custodio Souza Hunold Cunha, Elenice Maria Siquetin Oliveira, Anderson Castro Soares de Braga, Ísis Assis Aguiar, Daniel Moura |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Lucas Gaíva E Borges, Alice Mamede Costa Marques Villalobos, Eliana Monteforte Cassaro Lara, Maria do Carmo Custodio Souza Hunold Cunha, Elenice Maria Siquetin Oliveira, Anderson Castro Soares de Braga, Ísis Assis Aguiar, Daniel Moura |
description |
The prevalence of antibodies against Equine Influenza Virus (EIV) was determined in 529 equines living on ranches in the municipality of Poconé, Pantanal area of Brazil, by means of the hemagglutination inhibition test, using subtype H3N8 as antigen. The distribution and possible association among positive animal and ranches were evaluated by the chi-square test, spatial autoregressive and multiple linear regression models. The prevalence of antibodies against EIV was estimated at 45.2% (95% CI 30.2 - 61.1%) with titers ranging from 20 to 1,280 HAU. Seropositive equines were found on 92.0% of the surveyed ranches. Equine from non-flooded ranches (66.5%) and negativity in equine infectious anemia virus (EIAV) (61.7%) were associated with antibodies against EIV. No spatial correlation was found among the ranches, but the ones located in non-flooded areas were associated with antibodies against EIV. A negative correlation was found between the prevalence of antibodies against EIV and the presence of EIAV positive animals on the ranches. The high prevalence of antibodies against EIV detected in this study suggests that the virus is circulating among the animals, and this statistical analysis indicates that the movement and aggregation of animals are factors associated to the transmission of the virus in the region. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/87660 |
url |
https://www.revistas.usp.br/rimtsp/article/view/87660 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/87660/90614 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
dc.source.none.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo; Vol. 56 No. 6 (2014); 487-492 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 56 Núm. 6 (2014); 487-492 Revista do Instituto de Medicina Tropical de São Paulo; v. 56 n. 6 (2014); 487-492 1678-9946 0036-4665 reponame:Revista do Instituto de Medicina Tropical de São Paulo instname:Instituto de Medicina Tropical (IMT) instacron:IMT |
instname_str |
Instituto de Medicina Tropical (IMT) |
instacron_str |
IMT |
institution |
IMT |
reponame_str |
Revista do Instituto de Medicina Tropical de São Paulo |
collection |
Revista do Instituto de Medicina Tropical de São Paulo |
repository.name.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT) |
repository.mail.fl_str_mv |
||revimtsp@usp.br |
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1798951650637905920 |