Multiple Introductions of Avian Influenza Viruses (H5N1), Laos, 2009–2010
Stephanie Sonnberg
, Phouvong Phommachanh, Tri Satya Putri Naipospos, Joanna McKenzie, Chintana Chanthavisouk, Som Pathammavong, Daniel Darnell, Phetlamphone Meeduangchanh, Adam M. Rubrum, Mahanakhone Souriya, Bounkhouang Khambounheuang, Richard J. Webby, Bounlom Douangngeun, and Robert G. Webster
Author affiliations: St. Jude Children’s Research Hospital, Memphis, Tennessee, USA (S. Sonnberg, D. Darnell, A.M. Rubrum, R.J. Webby, R.G. Webster); National Animal Health Centre, Vientiane, Laos (P. Phommachanh, P. Meeduangchanh, B. Douangngeun); Food and Agriculture Organization of the United Nations, Rome, Italy (T.S.P. Naipospos, J. McKenzie, C. Chanthavisouk, S. Pathammavong); and; Ministry of Agriculture and Forestry, Vientiane (M. Souriya, B. Khambounheuang)
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Figure
Figure. . Areas sampled and location of subtyped avian influenza viruses (H5N1), Laos, 2009–2010. Provinces that had previous outbreaks of highly pathogenic avian influenza and were part of the survey are indicated in gray, the province that had a previous outbreak but was not part of the survey is indicated in blue, and the province that had not had an outbreak but was part of the survey is indicated in green. Colored dots indicate presence of viruses: light blue, anti-H5 (clade 2.3.4); gray, anti-H9 lineage G1; red, clade 2.3.4.1; orange, clade 2.3.4.2; green, anti-H5 (clade 2.3.2); black, anti-H9 lineage Y280; white, anti-H4; yellow, anti-H6; purple, clade 2.3.2.1 or virus-specific antibodies.
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