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Article: Highly Pathogenic Avian Influenza Virus among Wild Birds in Mongolia

TitleHighly Pathogenic Avian Influenza Virus among Wild Birds in Mongolia
Authors
Issue Date2012
PublisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
Citation
Plos One, 2012, v. 7 n. 9, p. e44097 How to Cite?
AbstractMongolia combines a near absence of domestic poultry, with an abundance of migratory waterbirds, to create an ideal location to study the epidemiology of highly pathogenic avian influenza virus (HPAIV) in a purely wild bird system. Here we present the findings of active and passive surveillance for HPAIV subtype H5N1 in Mongolia from 2005-2011, together with the results of five outbreak investigations. In total eight HPAIV outbreaks were confirmed in Mongolia during this period. Of these, one was detected during active surveillance employed by this project, three by active surveillance performed by Mongolian government agencies, and four through passive surveillance. A further three outbreaks were recorded in the neighbouring Tyva Republic of Russia on a lake that bisects the international border. No HPAIV was isolated (cultured) from 7,855 environmental fecal samples (primarily from ducks), or from 2,765 live, clinically healthy birds captured during active surveillance (primarily shelducks, geese and swans), while four HPAIVs were isolated from 141 clinically ill or dead birds located through active surveillance. Two low pathogenic avian influenza viruses (LPAIV) were cultured from ill or dead birds during active surveillance, while environmental feces and live healthy birds yielded 56 and 1 LPAIV respectively. All Mongolian outbreaks occurred in 2005 and 2006 (clade 2.2), or 2009 and 2010 (clade 2.3.2.1); all years in which spring HPAIV outbreaks were reported in Tibet and/or Qinghai provinces in China. The occurrence of outbreaks in areas deficient in domestic poultry is strong evidence that wild birds can carry HPAIV over at least moderate distances. However, failure to detect further outbreaks of clade 2.2 after June 2006, and clade 2.3.2.1 after June 2010 suggests that wild birds migrating to and from Mongolia may not be competent as indefinite reservoirs of HPAIV, or that HPAIV did not reach susceptible populations during our study.
Persistent Identifierhttp://hdl.handle.net/10722/179842
ISSN
2015 Impact Factor: 3.057
2015 SCImago Journal Rankings: 1.395
References

 

DC FieldValueLanguage
dc.contributor.authorGilbert, Men_US
dc.contributor.authorJambal, Len_US
dc.contributor.authorKaresh, WBen_US
dc.contributor.authorFine, Aen_US
dc.contributor.authorShiilegdamba, Een_US
dc.contributor.authorDulam, Pen_US
dc.contributor.authorSodnomdarjaa, Ren_US
dc.contributor.authorGanzorig, Ken_US
dc.contributor.authorBatchuluun, Den_US
dc.contributor.authorTseveenmyadag, Nen_US
dc.contributor.authorBolortuya, Pen_US
dc.contributor.authorCardona, CJen_US
dc.contributor.authorLeung, CYHen_US
dc.contributor.authorPeiris, JSMen_US
dc.contributor.authorSpackman, Een_US
dc.contributor.authorSwayne, DEen_US
dc.contributor.authorJoly, DOen_US
dc.date.accessioned2012-12-19T10:05:25Z-
dc.date.available2012-12-19T10:05:25Z-
dc.date.issued2012en_US
dc.identifier.citationPlos One, 2012, v. 7 n. 9, p. e44097en_US
dc.identifier.issn1932-6203en_US
dc.identifier.urihttp://hdl.handle.net/10722/179842-
dc.description.abstractMongolia combines a near absence of domestic poultry, with an abundance of migratory waterbirds, to create an ideal location to study the epidemiology of highly pathogenic avian influenza virus (HPAIV) in a purely wild bird system. Here we present the findings of active and passive surveillance for HPAIV subtype H5N1 in Mongolia from 2005-2011, together with the results of five outbreak investigations. In total eight HPAIV outbreaks were confirmed in Mongolia during this period. Of these, one was detected during active surveillance employed by this project, three by active surveillance performed by Mongolian government agencies, and four through passive surveillance. A further three outbreaks were recorded in the neighbouring Tyva Republic of Russia on a lake that bisects the international border. No HPAIV was isolated (cultured) from 7,855 environmental fecal samples (primarily from ducks), or from 2,765 live, clinically healthy birds captured during active surveillance (primarily shelducks, geese and swans), while four HPAIVs were isolated from 141 clinically ill or dead birds located through active surveillance. Two low pathogenic avian influenza viruses (LPAIV) were cultured from ill or dead birds during active surveillance, while environmental feces and live healthy birds yielded 56 and 1 LPAIV respectively. All Mongolian outbreaks occurred in 2005 and 2006 (clade 2.2), or 2009 and 2010 (clade 2.3.2.1); all years in which spring HPAIV outbreaks were reported in Tibet and/or Qinghai provinces in China. The occurrence of outbreaks in areas deficient in domestic poultry is strong evidence that wild birds can carry HPAIV over at least moderate distances. However, failure to detect further outbreaks of clade 2.2 after June 2006, and clade 2.3.2.1 after June 2010 suggests that wild birds migrating to and from Mongolia may not be competent as indefinite reservoirs of HPAIV, or that HPAIV did not reach susceptible populations during our study.en_US
dc.languageengen_US
dc.publisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.actionen_US
dc.relation.ispartofPLoS ONEen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleHighly Pathogenic Avian Influenza Virus among Wild Birds in Mongoliaen_US
dc.typeArticleen_US
dc.identifier.emailLeung, CYH: cyhleung@hkucc.hku.hken_US
dc.identifier.emailPeiris, JSM: malik@hkucc.hku.hken_US
dc.identifier.authorityLeung, CYH=rp00307en_US
dc.identifier.authorityPeiris, JSM=rp00410en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1371/journal.pone.0044097en_US
dc.identifier.scopuseid_2-s2.0-84866299535en_US
dc.identifier.hkuros215280-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84866299535&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume7en_US
dc.identifier.issue9en_US
dc.identifier.spagee44097-
dc.identifier.epagee44097-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridGilbert, M=7202762498en_US
dc.identifier.scopusauthoridJambal, L=55359204400en_US
dc.identifier.scopusauthoridKaresh, WB=7003884292en_US
dc.identifier.scopusauthoridFine, A=55359053700en_US
dc.identifier.scopusauthoridShiilegdamba, E=23480382400en_US
dc.identifier.scopusauthoridDulam, P=35247859400en_US
dc.identifier.scopusauthoridSodnomdarjaa, R=6504362503en_US
dc.identifier.scopusauthoridGanzorig, K=37037335500en_US
dc.identifier.scopusauthoridBatchuluun, D=36135515300en_US
dc.identifier.scopusauthoridTseveenmyadag, N=54409404600en_US
dc.identifier.scopusauthoridBolortuya, P=55358707400en_US
dc.identifier.scopusauthoridCardona, CJ=7004278576en_US
dc.identifier.scopusauthoridLeung, CYH=26531438300en_US
dc.identifier.scopusauthoridPeiris, JSM=7005486823en_US
dc.identifier.scopusauthoridSpackman, E=6701500040en_US
dc.identifier.scopusauthoridSwayne, DE=35768368400en_US
dc.identifier.scopusauthoridJoly, DO=7005670706en_US

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