Entropy difference, with randomization test, between severe and mild sequence populations for A/H1N1pdm viruses sampled in Canada (during Wave 1 only).

aNucleotide position on the coding sequence of each genome segment;
bP values were calculated from the randomization test on entropy score differences between severe and mild sequence populations;
cE-Scores were calculated from Fisher Exact Test; <0.05 highlighted in bold font.