دورية أكاديمية
أعرض في EDS

Prevalence and diversity of H9N2 avian influenza in chickens of Northern Vietnam, 2014.

التفاصيل البيبلوغرافية
العنوان: Prevalence and diversity of H9N2 avian influenza in chickens of Northern Vietnam, 2014.
المؤلفون: Thuy DM; National Center for Veterinary Diagnostics, Department of Animal Health, Hanoi, Vietnam., Peacock TP; Avian Viral Diseases programme, The Pirbright Institute, Woking, UK; St Mary's Campus, Imperial College London, London, UK., Bich VTN; Oxford University Clinical Research Unit and Wellcome Trust Major Overseas Programme, Hanoi, Vietnam., Fabrizio T; St Jude's Center for Excellence in Influenza Research and Surveillance, Memphis, TN, USA., Hoang DN; Division of Epidemiology, Department of Animal Health, Hanoi, Vietnam., Tho ND; MIVEGEC (UM1-UM2-CNRS 5290-IRD 224), Centre de Recherche IRD, Montpellier, France., Diep NT; Division of Epidemiology, Department of Animal Health, Hanoi, Vietnam., Nguyen M; Oxford University Clinical Research Unit and Wellcome Trust Major Overseas Programme, Hanoi, Vietnam., Hoa LNM; Oxford University Clinical Research Unit and Wellcome Trust Major Overseas Programme, Hanoi, Vietnam., Trang HTT; Oxford University Clinical Research Unit and Wellcome Trust Major Overseas Programme, Hanoi, Vietnam., Choisy M; Oxford University Clinical Research Unit and Wellcome Trust Major Overseas Programme, Hanoi, Vietnam; MIVEGEC (UM1-UM2-CNRS 5290-IRD 224), Centre de Recherche IRD, Montpellier, France., Inui K; Food and Agriculture Organization of the United Nations, Hanoi, Vietnam., Newman S; Food and Agriculture Organization of the United Nations, Hanoi, Vietnam., Trung NV; National Hospital Tropical Diseases, Hanoi, Vietnam., van Doorn R; Oxford University Clinical Research Unit and Wellcome Trust Major Overseas Programme, Hanoi, Vietnam; Center for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK., To TL; National Center for Veterinary Diagnostics, Department of Animal Health, Hanoi, Vietnam., Iqbal M; Avian Viral Diseases programme, The Pirbright Institute, Woking, UK., Bryant JE; Oxford University Clinical Research Unit and Wellcome Trust Major Overseas Programme, Hanoi, Vietnam; Center for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK. Electronic address: jbryant@oucru.org.
المصدر: Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases [Infect Genet Evol] 2016 Oct; Vol. 44, pp. 530-540. Date of Electronic Publication: 2016 Jun 20.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 101084138 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1567-7257 (Electronic) Linking ISSN: 15671348 NLM ISO Abbreviation: Infect Genet Evol Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Amsterdam ; New York : Elsevier Science, c2001-
مواضيع طبية MeSH: Chickens/*virology , Influenza A Virus, H9N2 Subtype/*classification , Influenza A Virus, H9N2 Subtype/*genetics , Influenza in Birds/*epidemiology , Influenza in Birds/*virology, Animals ; Genome, Viral ; Genotype ; Hemagglutinin Glycoproteins, Influenza Virus/chemistry ; Hemagglutinin Glycoproteins, Influenza Virus/genetics ; High-Throughput Nucleotide Sequencing ; Models, Molecular ; Mutation ; Phylogeny ; Phylogeography ; Prevalence ; Protein Conformation ; Public Health Surveillance ; Vietnam/epidemiology
مستخلص: Despite their classification as low pathogenicity avian influenza viruses (LPAIV), A/H9N2 viruses cause significant losses in poultry in many countries throughout Asia, the Middle East and North Africa. To date, poultry surveillance in Vietnam has focused on detection of influenza H5 viruses, and there is limited understanding of influenza H9 epidemiology and transmission dynamics. We determined prevalence and diversity of influenza A viruses in chickens from live bird markets (LBM) of 7 northern Vietnamese provinces, using pooled oropharyngeal swabs collected from October to December 2014. Screening by real time RT-PCR revealed 1207/4900 (24.6%) of pooled swabs to be influenza A virus positive; overall prevalence estimates after accounting for pooling (5 swabs/pools) were 5.8% (CI 5.4-6.0). Subtyping was performed on 468 pooled swabs with M gene Ct<26. No influenza H7 was detected; 422 (90.1%) were H9 positive; and 22 (4.7%) were H5 positive. There was no evidence was of interaction between H9 and H5 virus detection rates. We sequenced 17 whole genomes of A/H9N2, 2 of A/H5N6, and 11 partial genomes. All H9N2 viruses had internal genes that clustered with genotype 57 and were closely related to Chinese human isolates of A/H7N9 and A/H10N8. Using a nucleotide divergence cutoff of 98%, we identified 9 distinct H9 genotypes. Phylogenetic analysis suggested multiple introductions of H9 viruses to northern Vietnam rather than in-situ transmission. Further investigations of H9 prevalence and diversity in other regions of Vietnam are warranted to assess H9 endemicity elsewhere in the country.
(Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.)
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معلومات مُعتمدة: BBS/E/I/00001708 United Kingdom BB_ Biotechnology and Biological Sciences Research Council; BB/L018853/1 United Kingdom BB_ Biotechnology and Biological Sciences Research Council
فهرسة مساهمة: Keywords: Avian influenza; Chicken; H5; H9N2; Poultry; Vietnam; Zoonotic
المشرفين على المادة: 0 (Hemagglutinin Glycoproteins, Influenza Virus)
تواريخ الأحداث: Date Created: 20160625 Date Completed: 20170926 Latest Revision: 20220129
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC5036934
DOI: 10.1016/j.meegid.2016.06.038
PMID: 27340015
قاعدة البيانات: MEDLINE
الوصف
تدمد:1567-7257
DOI:10.1016/j.meegid.2016.06.038