| isolation and characterization of an h9n2 influenza virus isolated in argentina. | as part of our ongoing efforts on animal influenza surveillance in argentina, an h9n2 virus was isolated from a wild aquatic bird (netta peposaca), a/rosy-billed pochard/argentina/cip051-559/2007 (h9n2) - herein referred to as 559/h9n2. due to the important role that h9n2 viruses play in the ecology of influenza in nature, the 559/h9n2 isolate was characterized molecularly and biologically. phylogenetic analysis of the ha gene revealed that the 559/h9n2 virus maintained an independent evolutiona ... | 2012 | 22709552 |