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. 2010 Aug 17;5(2):115–122. doi: 10.1111/j.1750-2659.2010.00164.x

Table 1.

 Percent identity of the nucleotide and amino acid sequences of the hemagglutinin (HA), neuraminidase (NA), matrix (M) and nucleoprotein (NP) genes of sw/B/98 with those of sw/IA/04 or a prototype pandemic (H1N1) 2009 virus

% identity compared to sw/B/98
HA NA M1 NP
N aa N aa N aa N aa
Sw/IA/04 75 75 79 82 88 94 83 98
Calif/09 74 72 92 93 95 98 83 97

N, nucleotide; aa, amino acid.