Methods Hamster kidney cells were infected with tick - borne encephalitis virus,and the harvested virus suspension was concentrated by ultrafiltration and purified by column chromatography.

• 方法将森林脑炎病毒感染地鼠肾单层细胞，收获病毒液，经超滤浓缩、柱层析纯化病毒后配制而成。