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. 2013 Nov 22;8(11):e81136. doi: 10.1371/journal.pone.0081136

Table 3. Amino acids associated with high infectivity of the novel H7N9 viruses.

PB1 NP
M1
M2 NS1
Subtype Host Origin Period Strain No. 113 77 105 377 15 101 166 28 207
H7N9 Avian China 2013 6 I R V N I K A V D
Human China 2013 5 I R V N I K A V D
H9N2 Avian Worldwide 2009-2012 22 I R V N I K A V D
H5N1 Avian China 2003-2010 19 I R V N I K A V D
H7N9 Avian Worldwide 2000-2011 9 V K M/I S V R V I N