Volume 14, Number 4—April 2008
Dispatch
Multiple Sublineages of Influenza A Virus (H5N1), Vietnam, 2005−2007
Tien Dung Nguyen*
, Dhanasekaran Vijaykrishna†, Robert G. Webster‡, Yi Guan†, J.S. Malik Peiris†§, Gavin J.D. Smith†, and The Vinh Nguyen
, Dhanasekaran Vijaykrishna†, Robert G. Webster‡, Yi Guan†, J.S. Malik Peiris†§, Gavin J.D. Smith†, and The Vinh NguyenTable
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).
