Definition of masked. 1  1 : marked by the use of masks a masked ball. 2  2 : failing to present or produce the usual symptoms : latent a masked infection a masked virus.
1 HSV-1. 2  This is the type that usually causes cold sores or fever blisters around your mouth, though it can be spread to your genital area during oral sex. 3  Recurrences are much less frequent than they are with HSV-2 infection. 4  HSV-2.
Infection with the herpes simplex virus, commonly known as herpes, can be due to either herpes simplex virus 1 (HSV-1) or herpes simplex virus 2 (HSV-2). HSV-1 is mainly transmitted by oral to oral contact.HSV-2 is a sexually transmitted infection that can cause painful genital ulcer disease.nfection with the herpes simplex virus, commonly known as herpes, can be due to either herpes simplex virus 1 (HSV-1) or herpes simplex virus 2 (HSV-2). HSV-1 is mainly transmitted by oral to oral contact.