Article
Multiple Introductions of Avian Influenza Viruses (H5N1), Laos, 2009–2010
30 May 2012
Abstract excerpt
Avian infl uenza viruses (H5N1) of clades 2.3.4.1, 2.3.4.2, and 2.3.2.1 were introduced into Laos in 2009-2010. To investigate these viruses, we conducted active surveillance of poultry during March 2010. We detected viruses throughout Laos, including several interclade reassortants and 2 subgroups of clade 2.3.4, one of which caused an outbreak in May 2010. S ince 2003, highly pathogenic avian infl uenza virus...
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