Abstract
In spite of highly pathogenic avian influenza H5N1 vaccination campaigns for domestic poultry, H5N1 viruses continue to circulate in Vietnam. To estimate the prevalence of avian influenza virus in Vietnam, surveillance was conducted between November 2011 and February 2013. Genetic analysis of 312 highly pathogenic avian influenza H5 viruses isolated from poultry in Vietnam was conducted and possible genetic relationships with strains from neighboring countries were investigated. As previously reported, phylogenetic analysis of the avian influenza virus revealed two H5N1 HPAI clades that were circulating in Vietnam. Clade 1.1, related to Cambodian strains, was predominant in the southern provinces, while clade 2.3.2.1 viruses were predominant in the northern and central provinces. Sequence analysis revealed evidence of active genetic evolution. In the gene constellation of clade 2.3.2.1, genotypes A, B, and B(II) existed during the 2011/2012 winter season. In June 2012, new genotype C emerged by reassortment between genotype A and genotype B(II), and this genotype was predominant in 2013 in the northern and central provinces. Interestingly, enzootic Vietnamese clade 2.3.2.1C H5 virus subsequently reassorted with N2, which origin...Continue Reading
References
Sep 15, 1999·Virology·X XuY Guo
Jan 29, 2002·Archives of Virology·E HoffmannD R Perez
Nov 1, 1950·The Journal of Experimental Medicine·I ARCHETTI, F L HORSFALL
Feb 26, 2005·Journal of Virology·Chang-Won LeeJae-Hong Kim
Dec 2, 2005·Emerging Infectious Diseases·UNKNOWN World Health Organization Global Influenza Program Surveillance Network
Feb 24, 2006·Emerging Infectious Diseases·Marius GilbertJan Slingenbergh
Sep 12, 2006·Nature Medicine·Menno D de JongJeremy Farrar
Nov 23, 2006·Antiviral Research·A C HurtI G Barr
Oct 10, 2007·PLoS Pathogens·Gina M ConenelloPeter Palese
Apr 9, 2008·Emerging Infectious Diseases·Tien Dung NguyenGavin J D Smith
Oct 23, 2008·PloS One·Xiu-Feng WanRuben O Donis
Feb 24, 2009·Preventive Veterinary Medicine·Phan Q MinhRon Jackson
Jun 9, 2010·Systematic Biology·Stéphane GuindonOlivier Gascuel
Jun 12, 2010·Journal of Virology·Yanbing LiHualan Chen
Jul 9, 2010·The Journal of General Virology·Wen-Ming JiangJi-Ming Chen
Nov 19, 2010·Journal of Virology·Gina M ConenelloMichael G Katze
Feb 18, 2011·Journal of Virology·Makoto OzawaYoshihiro Kawaoka
Oct 7, 2011·Preventive Veterinary Medicine·Hiroki TakakuwaKoichi Otsuki
Nov 10, 2011·Archives of Virology·Naoki NomuraHiroshi Kida
Jan 21, 2012·Virus Genes·William G Dundon
Jun 12, 2012·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·San SornPhilippe Buchy
Jul 24, 2012·Virology·Tung NguyenRuben O Donis
May 21, 2013·Veterinary Microbiology·Dau Huy TungKhang Dinh Duy
Jun 6, 2013·Virus Research·Yi Guan, Gavin J D Smith
Aug 30, 2013·The Journal of Veterinary Medical Science·Tatsuya NishiHiroshi Kida
Sep 21, 2013·Emerging Infectious Diseases·Mai Quynh LeHeiman F L Wertheim
Citations
Feb 20, 2016·Emerging Infectious Diseases·Ikuyo TakayamaTsutomu Kageyama
Sep 10, 2015·The Journal of General Virology·Mahmoud M NaguibTimm C Harder
Oct 16, 2015·Reviews in Medical Virology·Takehiko SaitoRyota Tsunekuni
Feb 24, 2016·PloS One·Tinh Huu NguyenWonyong Kim
Sep 2, 2017·Journal of Veterinary Science·Jin-Wook JangHyuk-Joon Kwon
Aug 26, 2020·BMC Bioinformatics·Irene Righetto, Francesco Filippini
Sep 1, 2018·Scientific Reports·Yasuha AraiYohei Watanabe
Jul 12, 2019·Frontiers in Microbiology·Gongxun ZhongYoshihiro Kawaoka
Dec 8, 2017·Journal of Virology·Gongxun ZhongYoshihiro Kawaoka
Apr 30, 2017·Poultry Science·Mingyue LiuMd Shakhawat Hossain