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.
The herpes simplex virus, also known as HSV, is an infection that causes herpes. Herpes can appear in various parts of the body, most commonly on the genitals or mouth. There are two types of the herpes simplex virus.HSV-1, also known as oral herpes, can cause cold sores and fever blisters around the mouth and on the face.HSV-2 is generally responsible for genital herpes outbreaks.SV-1, also known as oral herpes, can cause cold sores and fever blisters around the mouth and on the face. HSV-2 is generally responsible for genital herpes outbreaks.