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.
Herpes is a sexually transmitted disease (STD) caused by the herpes simplex virus (HSV). HSV-type 1 commonly causes fever blisters on the mouth or face (oral herpes), while HSV-type 2 typically affects the genital area (genital herpes).However, both viral types can cause either genital or oral infections.enital herpes can be transmitted with or without the presence of sores or other symptoms. It often is transmitted by people who are unaware that they are infected, or by people who do not recognize that their infection can be transmitted even when they have no symptoms.