| phylogenetic evidence of multiple introduction of h5n1 virus in malda district of west bengal, india in 2008. | outbreaks of h5n1 avian influenza virus were reported in 15 districts of west bengal state in india in early 2008 and subsequent re-occurrence in 5 districts in december, 2008 to may, 2009. we have sequenced complete genome of 12 viruses isolated from early 2008 outbreak and from recurrent outbreak and determined the phylogenetic relationship between the viruses isolated from the two outbreaks. one of the virus isolated in early 2008 from malda district (a/chicken/west bengal/81760/2008) cluster ... | 2010 | 20864277 |