Alignment of 5' non-coding region of S, M, and L genome segments (cDNA presented). Among the two human isolates only one nucleotide difference was observed in the NCR of the L segment at position 6888. For each segment, the consensus sequence consists of three or more sequences sharing the same nucleotide at a given position and areas with no clear consensus are indicated with and "N". Underlined sequence indicates region conserved among all three segments. Putative host-specific nucleotide sequences are indicated with an arrow (↓).