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 Simplex is a common virus affecting humans. There are two types of Herpes Simplex Viruses (HSV). HSV Type 1 causes cold sores and can affect the face and eyes. HSV Type 2 primarily causes genital infections.