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Volume 14, Number 4—April 2008
Dispatch

Multiple Sublineages of Influenza A Virus (H5N1), Vietnam, 2005−2007

Tien Dung Nguyen*Comments to Author , Dhanasekaran Vijaykrishna†, Robert G. Webster‡, Yi Guan†, J.S. Malik Peiris†§, Gavin J.D. Smith†, and The Vinh Nguyen
Author affiliations: *National Institute of Veterinary Research, Hanoi, Vietnam; †University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China; ‡St. Jude Children's Research Hospital, Memphis, Tennessee, USA; §The HKU-Pasteur Research Centre, Pokfulam, Hong Kong Special Administrative Region, China;

Main Article

Table

Influenza virus isolates from poultry in Vietnam, 2005–2007

Isolate* Genotype Date Province† Sublineage‡
Dk/VNM/1228/05 Z 2005 Oct Dong Thap (S) Clade 1
Dk/VNM/1231/05 Z 2005 Nov Soc Trang (S) Clade 1
Dk/VNM/1233/05 Z 2005 Nov An Giang (S) Clade 1
MusDk/VNM/1455/06 G 2006 Feb Ha Tay (N) Clade 2.3.2
Dk/VNM/1469/05 Z 2005 Nov Vinh Long (S) Clade 1
Dk/VNM/1771/05 Z 2005 Oct Can Tho (S) Clade 1
Dk/VNM/1/07 Z 2007 Jan Ca Mau (S) Clade 1
Dk/VNM/2/07 Z 2007 Jan Ca Mau (S) Clade 1
MusDk/VNM/4/07 Z 2007 Jan Ca Mau (S) Clade 1
Dk/VNM/5/07 Z 2007 Jan Ca Mau (S) Clade 1
Dk/VNM/6/07 Z 2007 Jan Ca Mau (S) Clade 1
Dk/VNM/7/07 Z 2007 Jan Ca Mau (S) Clade 1
Dk/VNM/8/07 Z 2007 Jan Bac Lieu (S) Clade 1
Ck/VNM/15/07 Z 2007 Jan Soc Trang (S) Clade 1
Dk/VNM/18/07 Z 2007 Jan Kien Giang (S) Clade 1
Ck/VNM/29/07 Z 2006 Dec Hau Giang (S) Clade 1
MusDk/VNM/33/07 Z 2007 Jan Ca Mau (S) Clade 1
Dk/VNM/34/07 Z 2007 Jan Can Tho (S) Clade 1
Dk/VNM/37/07 Z 2007 Mar Lai Chau (N) Clade 2.3.4
Dk/VNM/38/07 Z 2007 Mar Hai Duong (N) Clade 2.3.4
MusDk/VNM/39/07 Z 2007 Mar Hanoi (N) Clade 2.3.4
MusDk/VNM/41/07 Z 2007 Mar Hanoi (N) Clade 2.3.4
Dk/VNM/43/07 Z 2007 Apr Ha Tay (N) Clade 2.3.4
MusDk/VNM/48/07 Z 2007 May Hanoi (N) Clade 2.3.4
MusDk/VNM/49/07 Z 2007 Apr Hanoi (N) Clade 2.3.4
Dk/VNM/50/07 Z 2007 May Hanoi (N) Clade 2.3.4
MusDk/VNM/51/07 Z 2007 Apr Ha Nam (N) Clade 2.3.4
Dk/VNM/52/07 Z 2007 May Phu Tho (N) Clade 2.3.4
Dk/VNM/53/07 Z 2007 May Nghe An (N) Clade 2.3.4
MusDk/VNM/54/07 Z 2007 May Hanoi (N) Clade 2.3.4
Dk/VNM/55/07 Z 2007 May Hanoi (N) Clade 2.3.4
MusDk/VNM/56/07 Z 2007 May Hanoi (N) Clade 2.3.4
MusDk/VNM/57/07 Z 2007 Apr Hanoi (N) Clade 2.3.4

*Ck, chicken; Dk, duck; MusDk, muscovy duck; VNM, Vietnam.
†The letters S and N denote southern Vietnam and northern Vietnam, respectively.
‡Based on the World Health Organization influenza (H5N1) nomenclature system (7).

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References
  1. Nguyen  DC, Uyeki  TM, Jadhao  S, Maines  T, Shaw  M, Matsuoka  Y, Isolation and characterization of avian influenza viruses, including highly pathogenic H5N1, from poultry in live bird markets in Hanoi, Vietnam, in 2001. J Virol. 2005;79:4201–12. DOIPubMedGoogle Scholar
  2. Chen  H, Smith  GJD, Li  KS, Wang  J, Fan  XF, Rayner  JM, Establishment of multiple sub-lineages of H5N1 influenza virus in Asia – implications for pandemic control. Proc Natl Acad Sci U S A. 2006;103:2845–50. DOIPubMedGoogle Scholar
  3. Smith  GJ, Fan  XH, Wang  J, Li  KS, Qin  K, Zhang  JX, Emergence and predominance of an H5N1 influenza variant in China. Proc Natl Acad Sci U S A. 2006;103:16936–41. DOIPubMedGoogle Scholar
  4. Smith  GJD, Naipospos  TSP, Nguyen  TD, de Jong  MD, Vijaykrishna  D, Usman  TB, Evolution and adaptation of H5N1 influenza virus in avian and human hosts in Indonesia and Vietnam. Virology. 2006;350:258–68. DOIPubMedGoogle Scholar
  5. World Health Organization. Epidemiological record of WHO-confirmed human cases of avian influenza A (H5N1) infection. Wkly Epidemiol Rec. 2006;81:249–60.PubMedGoogle Scholar
  6. Hien  TH, Nguyen  TL, Nguyen  TD, Luong  TS, Pham  PM, Nguyen  VC, Avian influenza A (H5N1) in 10 patients in Vietnam. N Engl J Med. 2004;350:1179–88. DOIPubMedGoogle Scholar
  7. World Health Organization. Towards a unified nomenclature system for the highly pathogenic H5N1 avian influenza viruses. 2007 [cited 2007 Oct 10]. Available from http://www.who.int/csr/disease/avian_influenza/guidelines/nomenclature/en
  8. World Health Organization Global Influenza Program Surveillance Network. Evolution of H5N1 avian influenza viruses in Asia. Emerg Infect Dis. 2005;11:1515–21.PubMedGoogle Scholar
  9. Food and Agricultural Organization of the United Nations. Avian Influenza Disease Emergency Bulletin. 2006; issue 43 [cited 2007 Oct 10]. Available from http://www.fao.org/avianflu/en/AIDEnews.html
  10. Zwickl  DJ. Genetic algorithm approaches for the phylogenetic analysis of large biological sequence datasets under the maximum likelihood criterion [dissertation]. Austin (TX): The University of Texas at Austin; 2006. Available from www.bio.utexas.edu/faculty/antisense/garli/Garli.html
  11. Buchy  P, Mardy  S, Vong  S, Toyoda  T, Aubin  JT, Miller  M, Influenza A/H5N1 virus infection in humans in Cambodia. J Clin Virol. 2007;39:164–8. DOIPubMedGoogle Scholar
  12. Zhu  QY, Qin  ED, Wang  W, Yu  J, Liu  BH, Hu  Y, Fatal infection with influenza A (H5N1) virus in China. N Engl J Med. 2006;354:2731–2. DOIPubMedGoogle Scholar
  13. Stevens  J, Blixt  O, Tumpey  TM, Taubenberger  JK, Paulson  JC, Wilson  IA. Structure and receptor specificity of the hemagglutinin from and H5N1 influenza virus. Science. 2006;312:404–10. DOIPubMedGoogle Scholar
  14. Yamada  S, Suzuki  Y, Suzuki  T, Le  MQ, Nidom  CA, Sakai-Tagawa  Y, Haemagglutinin mutations responsible for the binding of H5N1 influenza A viruses to human-type receptors. Nature. 2006;444:378–82. DOIPubMedGoogle Scholar
  15. Cheung  CL, Rayner  JM, Smith  GJD, Wang  P, Naipospos  TSP, Zhang  J, Distribution of amantadine-resistant H5N1 avian influenza variants in Asia. J Infect Dis. 2006;193:1626–9. DOIPubMedGoogle Scholar

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