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.
HSV-1 can cause genital herpes, but it more commonly causes infections of the mouth and lips, so-called fever blisters.. HSV-1 infection of the genitals can be caused by oral-genital or genital-genital contact with a person who has HSV-1 infection.Genital HSV-1 outbreaks recur less regularly than genital HSV-2 outbreaks.. Source(s): http://www.herpes.com/ http://www.cdc.gov/std/Herpes/STDFact-He... nellie3300 Â· 8 years ago.SV-1 infection of the genitals can be caused by oral-genital or genital-genital contact with a person who has HSV-1 infection. Genital HSV-1 outbreaks recur less regularly than genital HSV-2 outbreaks.. Source(s): http://www.herpes.com/ http://www.cdc.gov/std/Herpes/STDFact-He... nellie3300 Â· 8 years ago.