| identification and characterization of a late ah1n2 human reassortant in france during the 2002-2003 influenza season. | we have previously shown a clear differential genetic evolution of the hemagglutinin (ha) of human ah1n1 and ah1n2 viruses, isolated in southern france between 2001 and 2004. however, our analysis revealed that one single ah1n2 isolate, detected in 2003 (a/lyon/0838/2003), had its ha clustering within the has of the ah1n1 subtypes. to determine if this virus was a new reassortant, the nucleotide sequences of its eight rna gene segments were compared with those of five representative strains of t ... | 2008 | 18054811 |