Volume 18, Number 7—July 2012
Dispatch
Multiple Introductions of Avian Influenza Viruses (H5N1), Laos, 2009–2010
Table 1
Genotypes of 21 surveillance samples of avian influenza virus (H5N1) and outbreak virus A/chicken/Lao/LH1/2010, Laos, 2009–2010*
Sample ID | Sample type | Location† | Sampling site | Gene‡ |
|||||||
---|---|---|---|---|---|---|---|---|---|---|---|
PB2 | PB1 | PA | H5§ | NP | N1 | M | NS | ||||
A/ck/LH1 | Chicken | Vientiane | Farm | 2.3.4 | |||||||
210317 | Duck | Xiengkhouang-1 | Market | NA | NA | 2.3.4 | |||||
210265 | Duck | Luang Namtha-1 | Backyard | NA | NA | 2.3.4 | NA | ||||
210281 | Env | Champasak-1 | Market | NA | NA | 2.3.2 | NA | ||||
210287 | Duck | Champasak-1 | Market | NA | 2.3.2 | ||||||
210289 | Duck | Champasak-1 | Market | 2.3.2 | |||||||
210252 | Duck | Luang Namtha-1 | Backyard | 2.3.4 | |||||||
210253 | Duck | Luang Namtha-1 | Backyard | 2.3.4 | |||||||
210255 | Duck | Luang Namtha-1 | Backyard | 2.3.4 | |||||||
210358 | Duck | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210360 | Duck | Xiengkhouang-2 | Backyard | NA | 2.3.4 | ||||||
210361 | Duck | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210363 | Env | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210367 | Duck | Xiengkhouang-2 | Backyard | NA | 2.3.4 | ||||||
210374 | Duck | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210376 | Env | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210378 | Env | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210379 | Duck | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210380 | Duck | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210385 | Duck | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210386 | Duck | Xiengkhouang-2 | Backyard | 2.3.4 | |||||||
210349 | Duck | Savanakhet-1 | Farm | 2.3.4 | NA |
*Boldface indicates outbreak virus isolate and closely related isolates. ID, identification; PB, polymerase basic; PA, polymerase acidic; H, hemagglutinin; NP, nucleoprotein; N, neuraminidase; M, matrix; NS, nonstructural; NA, not available; env, environmental.
†Identical numbers indicate same sampling site.
‡Pink shading, A/Guizhou/1/2009-like clade 2.3.4.1; blue shading, A/whooper swan/Mongolia/6/2009-like clade 2.3.2.1; purple shading, A/tree_sparrow/Jiangsu/1/08-like clade 2.3.4; gray shading, A/environment/Guizhou/4/2009-like clade 2.3.4.2.
§Clade is indicated.