The isolated and identified wild-type VZV4 and the standard strain VZV-Ellen were titrated, and the median tissue culture infective dose (TCID50) were calculated.

• 确定更昔洛韦和阿昔洛韦Vero细胞毒性,分别计算更昔洛韦和阿昔洛韦的半数中毒浓度(median toxic concentration,TC50)和最大无毒浓度(maximal nontoxic concentration,TC0);