Table 4.

The antiviral activity of MBS extract on RSV by the direct virucidal effect and the prophylactic effect on Vero cell line

Protocol	Time	aCC50 mg/ml	bIC50 mg/ml	cSI
dDVI	0 h	220.96 ± 60.56	26.98 ± 2.82	8.35 ± 0.79
	1 h	220.96 ± 60.56	15.62 ± 0.61	14.18 ± 0.54
	2 h	220.96 ± 60.56	26.72 ± 0.95	8.28 ± 0.29
Ribavirin	1 h	1.4 ± 0.088	0.06 ± 0.005	23.39 ± 2.44
eIVR	30 min	220.96 ± 60.56	18.92 ± 0.47	11.69 ± 0.28
	1 h	220.96 ± 60.56	17.23 ± 0.3	12.82 ± 0.23
Ribavirin	1 h	2.28 ± 0.057	0.087 ± 0.005	21.95 ± 2.12

Note: ^acytotoxic concentration 50, ^b Inhibitory concentration 50, ^c selective index ^dDVI: the direct virus inactivation. ^eIVR: the inhibition in virus infection after specific cell treatment