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Avian influenza virus ecology in wild birds of Western Siberia

Avian Research 2017年第2期8卷 110-114页

作者： k.A.Sharshov a.k.yurlov Xinxin Li Wen Wang Laixing Li Yuhai Bi Wenjun Liu Takehiko Saito Haruko Ogawa A.M.Shestopalov Laboratory of Experimental Modeling and Pathogenesis of Infectious Diseases Research Institute of Experimental and Clinical MedicineNovosibirskRussia 630117 Research Group of Birds Ecology Institute of Systematics and Ecology of AnimalsSiberian Branch of the Russian Academy of SciencesNovosibirskRussia 630091 Faculty of Natural Sciences Novosibirsk State UniversityNovosibirskRussia 630090 Northwest Institute of Plateau Biology Chinese Academy of SciencesXining 810008China Center for Influenza Research and Early-warning(CASCIRE) Chinese Academy of SciencesBeijing 100101China CAS key Laboratory of Pathogenic Microbiology and Immunology(CASPMI) Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Division of Transboundary Animal Disease National Institute of Animal Health(NIAH)National Agriculture and Food Research Organization(NARO)TsukubaIbaraki 305-0856Japan Diagnostic Center for Animal Health and Food Safety Obihiro University of Agriculture and Veterinary MedicineObihiroJapan

Background:The aim of the study was to explore the ecological diversity of wild birds in Siberia, which are the natural reservoir of avian influenza virus(AIV).Methods:Cloacal swabs and intestinal fragments were collected from wild migratory birds from 2007-2014. Isolated viruses were grown in the allantoic cavity of embryonated chicken eggs. The presence of virus was determined using hemagglutination assays. Primary identification and subtyping of influenza viruses was confirmed by ***:A total of 2300 samples obtained from wild migratory birds of 8 orders were collected and tested. Influenza was detected in 185 birds of 3 orders. Species of family Anatidae(order Anseriformes) such as European Teal(Anas crecca), Garganey Teal(A. querquedula), and Shoveler(A. clypeata) play the main role in AIV circulation in the south of Western Siberia. The proportion of viral carriers among waterfowl ranged from 5.6 to 20% in 2007-2014. The order Charadriiformes had lower virus isolation rates of not more than 1.4%.Conclusions:Wild migratory waterfowl of orders Anseriformes and Charadriiformes are the main reservoir of AIV in the south of Western Siberia. This area plays a key role in persistence, evolution, and geographical distribution of avian influenza.

关键词： Influenza A virus Wild birds Water and wetland complex Ecology Migration Distribution Surveillance

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Results of the influenza virus surveillance in wild birds in Western part of Mongolia

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Asian Pacific Journal of Tropical Medicine 2010年第2期3卷 90-93页

作者： Marchenko V Yu Alekseev A Yu Tserennorov D yurlov Ak Susloparov IM Sharshov kA Ilyinykh FA Zolotykh SI Abmed D Otgonbaatar D Shestopalov AM Federal State Research Institution State Research Center of Virology and Biotechnology VectorKoltsovoNovosibirsk RegionRussia National Centre for Diseases with Natural Foci UlaanbaatarMongolia Institute of Systematic and Ecology of Animals Siberian BranchRussian Academy of ScienceNovosibirskRussia National Centre for Infectious Diseases UlaanbaatarMongolia

Objective:To present results of virological study of wild birds inhabiting Western Mongolia. Methods:Over a period of 2003-2008,we isolated 13 influenza A viruses:H1N1,H3N6, H13N8 and H4N6 *** did not isolate any H5N1 subtype,that still cause epizooty in wild birds and ***:We revealed taxonomic and ecological heterogeneity of the birds involved in maintenance of circulation of influenza viruses in the given *** viruses were isolated from birds of 6 orders;among them there are species preferring water and semi-aquatic biotopes,one species preferring dry plain region,and also one species which can inhabit both dry and water ***:Representatives of all main orders of Western Mongolia avifauna are involved in support of influenza A virus circulation,highly pathogenic H5N1 influenza viruses were registered in Mongolia thus it’s necessary to continue permanent influenza virus surveillance in wild birds’ populations.

关键词： Influenza A virus Mongolia Wild birds

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