Table 2.

The nucleotide identity of complete gene segments from selected representative H7N9 virus including the two family clusters.

Gene segments	All	Overall average	Cluster 1	Cluster 2
PB2	≥0.945	0.970	1	0.998
PB1	≥0.947	0.982	1	0.999
PA	≥0.952	0.980	1	0.999
HA	≥0.971	0.987	1	1
NP	≥0.934	0.979	0.999	0.999
NA	≥0.972	0.989	0.999	0.999
MP	≥0.961	0.983	1	1
NS	≥0.944	0.987	1	1