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. Author manuscript; available in PMC: 2017 Aug 10.
Published in final edited form as: Virology. 2016 Apr 20;494:89–99. doi: 10.1016/j.virol.2016.04.013

Table 2.

The polymerase proteins PB2, PB1 and PA of H7N3 and H7N9 virus affect replication in MDCK cells.

Virus Substituted gene-segments Virus Titer (log10/ml)
H7N3 5.9 (1.0)
PB2, PB1, PA 4.4 (1.1) *
HA, NA 6.4 (0.5)
NS 5.1 (0.6)
H7N9 4.5 (0.8)
PB2, PB1, PA 6.4 (0.7) #
HA, NA -
NS 3.8 (0.4)

Results are the average and standard deviation of the log10-transformed virus titers 24 hours after inoculation of MDCK cells derived from at least two independent experiments.

*

= P<0.05 compared to H7N3 virus.

#

= P<0.05 compared to H7N9 virus.

“-”, no data.