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: Sousa,E de
Data de Publicação: 2013
Outros Autores: Costa,T P, Werther,K, Durigon,EL, Araujo,J de, Ferreira,CS, Pinto,AA
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Poultry Science (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300001
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.
id FACTA-1_4cfd350b6edfe9396f2daf400f8ed1b1
oai_identifier_str oai:scielo:S1516-635X2013000300001
network_acronym_str FACTA-1
network_name_str Brazilian Journal of Poultry Science (Online)
repository_id_str
spelling Presence of antibodies against H5, H7 and H9 influenza A virus in wild birds in the State of São Paulo, BrazilAvian influenza virusBrazilhemagglutination 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.Fundacao de Apoio a Ciência e Tecnologia Avicolas2013-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300001Brazilian Journal of Poultry Science v.15 n.3 2013reponame:Brazilian Journal of Poultry Science (Online)instname:Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)instacron:FACTA10.1590/S1516-635X2013000300001info:eu-repo/semantics/openAccessSousa,E deCosta,T PWerther,KDurigon,ELAraujo,J deFerreira,CSPinto,AAeng2013-10-01T00:00:00Zoai:scielo:S1516-635X2013000300001Revistahttp://www.scielo.br/rbcahttps://old.scielo.br/oai/scielo-oai.php||rvfacta@terra.com.br1806-90611516-635Xopendoar:2013-10-01T00:00Brazilian Journal of Poultry Science (Online) - Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)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
Sousa,E de
Avian influenza virus
Brazil
hemagglutination 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 Sousa,E de
author_facet Sousa,E de
Costa,T P
Werther,K
Durigon,EL
Araujo,J de
Ferreira,CS
Pinto,AA
author_role author
author2 Costa,T P
Werther,K
Durigon,EL
Araujo,J de
Ferreira,CS
Pinto,AA
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Sousa,E de
Costa,T P
Werther,K
Durigon,EL
Araujo,J de
Ferreira,CS
Pinto,AA
dc.subject.por.fl_str_mv Avian influenza virus
Brazil
hemagglutination inhibition
reservoir
wild bird
topic Avian influenza virus
Brazil
hemagglutination 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 2013-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-635X2013000300001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundacao de Apoio a Ciência e Tecnologia Avicolas
publisher.none.fl_str_mv Fundacao de Apoio a Ciência e Tecnologia Avicolas
dc.source.none.fl_str_mv Brazilian Journal of Poultry Science v.15 n.3 2013
reponame:Brazilian Journal of Poultry Science (Online)
instname:Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)
instacron:FACTA
instname_str Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)
instacron_str FACTA
institution FACTA
reponame_str Brazilian Journal of Poultry Science (Online)
collection Brazilian Journal of Poultry Science (Online)
repository.name.fl_str_mv Brazilian Journal of Poultry Science (Online) - Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA)
repository.mail.fl_str_mv ||rvfacta@terra.com.br
_version_ 1754122512531193856