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.
The herpes simplex virus (HSV) is a double-stranded DNA virus with an enveloped, icosahedral capsid. It is a common cause of infections of the skin and mucous membranes, manifesting itself as tiny, clear, fluid-filled blisters usually around the mouth or genitals.
Herpes is a sexually transmitted disease caused by two types of viruses: herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2). For the most part, HSV-1 causes blisters on or around the mouth and HSV-2 causes blisters in the genital area, however, both virus types can affect both areas.Herpes is spread through skin-to-skin contact, such as kissing and sexual contact.or the most part, HSV-1 causes blisters on or around the mouth and HSV-2 causes blisters in the genital area, however, both virus types can affect both areas. Herpes is spread through skin-to-skin contact, such as kissing and sexual contact.