Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil

Detalhes bibliográficos
Autor(a) principal: de Sousa, E. [UNESP]
Data de Publicação: 2013
Outros Autores: Costa, T. P. [UNESP], Werther, K. [UNESP], Durigon, E. L., de Araujo, J., Ferreira, C. S., Pinto, A. A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S1516-635X2013000300001
http://hdl.handle.net/11449/76826
Resumo: Although the natural reservoirs of the avian influenza (AI) virus have been extensively studied in many countries, there is a clear lack of information on this subject in South America, particularly in Brazil. The objective of this study was to conduct a serological survey for H5, H7 and H9 antibodies to AI-subtype viruses in wild birds in the state of São Paulo, Brazil. Serum samples were tested using the hemagglutination-inhibition assay. Out of the 31 wild birds sampled between January and December of 2006, seven (22.58%), were seropositive for H5, H7 and H9; four (12.90%) were seropositive for H5 and H7; 13 (41.94%), were seropositive only for H7; three (9.7%), were seropositive only for H9; and four (12.90%) were negative for all three hemagglutinin subtypes. These results indicate that AI viruses belonging to H5, H7 and H9 subtypes circulate among wild birds in the state of São Paulo in the form of either concurrent or consecutive infections. This study contributes to the knowledge of AI epidemiology in Brazil, and stresses the need of further detailed and long-term epidemiological and ecological investigation to determine the current status of this virus.
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spelling Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, BrazilAvian influenza virusBrazilHemagglutina-tion inhibitionReservoirWild birdAlthough the natural reservoirs of the avian influenza (AI) virus have been extensively studied in many countries, there is a clear lack of information on this subject in South America, particularly in Brazil. The objective of this study was to conduct a serological survey for H5, H7 and H9 antibodies to AI-subtype viruses in wild birds in the state of São Paulo, Brazil. Serum samples were tested using the hemagglutination-inhibition assay. Out of the 31 wild birds sampled between January and December of 2006, seven (22.58%), were seropositive for H5, H7 and H9; four (12.90%) were seropositive for H5 and H7; 13 (41.94%), were seropositive only for H7; three (9.7%), were seropositive only for H9; and four (12.90%) were negative for all three hemagglutinin subtypes. These results indicate that AI viruses belonging to H5, H7 and H9 subtypes circulate among wild birds in the state of São Paulo in the form of either concurrent or consecutive infections. This study contributes to the knowledge of AI epidemiology in Brazil, and stresses the need of further detailed and long-term epidemiological and ecological investigation to determine the current status of this virus.Departamento de Patologia Veterinária Universidade Estadual Paulista, Jaboticabal, SPDepartamento de Microbiologia Instituto de Ciências Biomédicas Universidade de São Paulo, São PauloDepartamento de Patologia Veterinária Universidade Estadual Paulista, Jaboticabal, SPUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)de Sousa, E. [UNESP]Costa, T. P. [UNESP]Werther, K. [UNESP]Durigon, E. L.de Araujo, J.Ferreira, C. S.Pinto, A. A. [UNESP]2014-05-27T11:30:50Z2014-05-27T11:30:50Z2013-10-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article169-172application/pdfhttp://dx.doi.org/10.1590/S1516-635X2013000300001Revista Brasileira de Ciencia Avicola, v. 15, n. 3, p. 169-172, 2013.1516-635Xhttp://hdl.handle.net/11449/7682610.1590/S1516-635X2013000300001S1516-635X2013000300001WOS:0003268117000012-s2.0-848850419782-s2.0-84885041978.pdf8846803499562819Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciência Avícola0.463info:eu-repo/semantics/openAccess2024-06-07T13:02:47Zoai:repositorio.unesp.br:11449/76826Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:46:41.931824Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
title Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
spellingShingle Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
de Sousa, E. [UNESP]
Avian influenza virus
Brazil
Hemagglutina-tion inhibition
Reservoir
Wild bird
title_short Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
title_full Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
title_fullStr Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
title_full_unstemmed Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
title_sort Presence of antibodies against H5, H7 and H9 influenza a virus in wild birds in the state of São Paulo, Brazil
author de Sousa, E. [UNESP]
author_facet de Sousa, E. [UNESP]
Costa, T. P. [UNESP]
Werther, K. [UNESP]
Durigon, E. L.
de Araujo, J.
Ferreira, C. S.
Pinto, A. A. [UNESP]
author_role author
author2 Costa, T. P. [UNESP]
Werther, K. [UNESP]
Durigon, E. L.
de Araujo, J.
Ferreira, C. S.
Pinto, A. A. [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv de Sousa, E. [UNESP]
Costa, T. P. [UNESP]
Werther, K. [UNESP]
Durigon, E. L.
de Araujo, J.
Ferreira, C. S.
Pinto, A. A. [UNESP]
dc.subject.por.fl_str_mv Avian influenza virus
Brazil
Hemagglutina-tion inhibition
Reservoir
Wild bird
topic Avian influenza virus
Brazil
Hemagglutina-tion inhibition
Reservoir
Wild bird
description Although the natural reservoirs of the avian influenza (AI) virus have been extensively studied in many countries, there is a clear lack of information on this subject in South America, particularly in Brazil. The objective of this study was to conduct a serological survey for H5, H7 and H9 antibodies to AI-subtype viruses in wild birds in the state of São Paulo, Brazil. Serum samples were tested using the hemagglutination-inhibition assay. Out of the 31 wild birds sampled between January and December of 2006, seven (22.58%), were seropositive for H5, H7 and H9; four (12.90%) were seropositive for H5 and H7; 13 (41.94%), were seropositive only for H7; three (9.7%), were seropositive only for H9; and four (12.90%) were negative for all three hemagglutinin subtypes. These results indicate that AI viruses belonging to H5, H7 and H9 subtypes circulate among wild birds in the state of São Paulo in the form of either concurrent or consecutive infections. This study contributes to the knowledge of AI epidemiology in Brazil, and stresses the need of further detailed and long-term epidemiological and ecological investigation to determine the current status of this virus.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-10
2014-05-27T11:30:50Z
2014-05-27T11:30:50Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S1516-635X2013000300001
Revista Brasileira de Ciencia Avicola, v. 15, n. 3, p. 169-172, 2013.
1516-635X
http://hdl.handle.net/11449/76826
10.1590/S1516-635X2013000300001
S1516-635X2013000300001
WOS:000326811700001
2-s2.0-84885041978
2-s2.0-84885041978.pdf
8846803499562819
url http://dx.doi.org/10.1590/S1516-635X2013000300001
http://hdl.handle.net/11449/76826
identifier_str_mv Revista Brasileira de Ciencia Avicola, v. 15, n. 3, p. 169-172, 2013.
1516-635X
10.1590/S1516-635X2013000300001
S1516-635X2013000300001
WOS:000326811700001
2-s2.0-84885041978
2-s2.0-84885041978.pdf
8846803499562819
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Brasileira de Ciência Avícola
0.463
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 169-172
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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