Virus
TCID50/mL (log10) EID50/mL (log10)
Parental virus CQY-2014 6.50 8.50
R164Q 6.0 7.5
A168N 5.33 7.5
I171T 5.0 8.0
T198A 5.0 7.75
R200T 5.0 7.5
D201G 5.33 7.25
D201A 5.33 7.0