title: Multiple sublineages of influenza A virus (H5N1), Vietnam, 2005-2007.
abstract: Phylogenetic analysis of influenza subtype H5N1 viruses isolated from Vietnam during 2005-2007 shows that multiple sublineages are present in Vietnam. Clade 2.3.4 viruses have replaced clade 1 viruses in northern Vietnam, and clade 1 viruses have been detected in southern Vietnam. Reassortment between these 2 sublineages has also occurred.
authors.affiliation: National Institute of Veterinary Research, Hanoi, Vietnam. dzungntd@gmail.com
authors.forename: Tien
authors.initials: T
authors.lastname: Dung Nguyen
authors.forename: The
authors.initials: T
authors.lastname: Vinh Nguyen
authors.forename: Dhanasekaran
authors.initials: D
authors.lastname: Vijaykrishna
authors.forename: Robert G
authors.initials: RG
authors.lastname: Webster
authors.forename: Yi
authors.initials: Y
authors.lastname: Guan
authors.forename: J S
authors.initials: JS
authors.lastname: Malik Peiris
authors.forename: Gavin J D
authors.initials: GJ
authors.lastname: Smith
mesh_terms: D000818:Animals; D016679:Genome, Viral; D053124:Influenza A Virus, H5N1 Subtype / Q000235:genetics*; D005585:Influenza in Birds / Q000453:epidemiology / Q000821:virology*; D008969:Molecular Sequence Data; D011200:Poultry / Q000821:virology; D014744:Vietnam / Q000453:epidemiology