Table I.

Cell viability (%) of control, Strain V and Hu-H1 cells (mean ± standard deviation; n=3).

	Group			P-value
Day	Control	Strain V	Hu-H1	Control vs. Strain V	Control vs. Hu-H1	Strain V vs. Hu-H1
0	100.00±1.12	100.63±2.42	99.48±1.15	ns	ns	ns
1	137.92±0.96	130.68±2.75	122.63±0.45	P<0.01	P<0.001	P<0.01
2	196.42±4.59	185.22±3.93	178.51±2.32	P<0.05	P<0.001	P<0.05
3	237.75±3.97	225.40±4.42	212.97±1.57	P<0.05	P<0.001	P<0.05
4	403.40±19.02	346.78±23.64	334.97±12.76	P<0.05	P<0.01	ns
5	429.43±9.41	399.82±12.82	383.18±9.49	P<0.05	P<0.01	ns
6	431.93±15.22	418.43±9.45	418.78±2.70	ns	ns	ns
7	438.91±13.56	430.32±11.31	426.57±3.05	ns	ns	ns

The cell viability of control cells at 0 days post-infection was designated as 100%. ns, not significant.