HSV could be isolated in the blood on 2 hours postin-fection.The isolation rate of HSV and level of viremia were increased on 48 hours postinfection.

• 小白鼠感染HSV第4天后开始发病，感染后2h血液内可分离出病毒，第48小时病毒血症水平和病毒检出率较高。