Herpes simplex virus 1 (HSV-1) is the main cause of oral herpes infections that occur on the mouth and lips. . symptoms (outbreak) but it can also occur without causing symptoms (asymptomatic shedding). .. Review Date: 4/12/2016
1 Dec 2011 Herpes simplex virus type 2 (HSV-2) is one of the most prevalent sexually mucosal immunobiology of HSV-2, and vaccine efforts to date, in an attempt of days even among persons with asymptomatic HSV-2 infection (33).