| phylogenetic and pathogenic analyses of three h5n1 avian influenza viruses (clade 2.3.2.1) isolated from wild birds in northeast china. | from april to september 2012, periodic surveillance of avian influenza h5n1 viruses from different wild bird species was conducted in northeast china. three highly pathogenic avian influenza (hpai) h5n1 viruses were isolated from a yellow-browed warbler, common shoveler, and mallard. to trace the genetic lineage of the isolates, nucleotide sequences of all eight gene segments were determined and phylogenetically analyzed. the data indicated that three viruses belonged to the same antigenic virus ... | 2015 | 25461692 |