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Herpes simplex virus 1 (cold sores) and 2 (genital herpes) (HSV-1 and HSV-2), also known by their taxonomic names Human alphaherpesvirus 1 and Human alphaherpesvirus 2, are two members of the human Herpesviridae family, a set of viruses that produce viral infections in the majority of humans. [1] [2] Both HSV-1 and HSV-2 are very common and ...
HSV-2 infections are much more common in these countries. In industrialized nations, the adolescent HSV-1 seroprevalence has been dropping steadily for the last 5 decades. The resulting increase in the number of young women becoming sexually active while HSV-1 seronegative has contributed to increased HSV-1 genital herpes rates, and as a result ...
Herpes gladiatorum is a skin infection primarily caused by the herpes simplex virus. The virus infects the cells in the epidermal layer of the skin. The initial viral replication occurs at the entry site in the skin or mucous membrane. [7] The infections caused by a HSV Type 1 virus may be primary or recurrent. [8]
Nine herpesvirus types are known to primarily infect humans, [7] at least five of which are extremely widespread among most human populations, and which cause common diseases: herpes simplex 1 and 2 (HSV-1 and HSV-2, also known as HHV-1 and HHV-2; both of which can cause orolabial and genital herpes), varicella zoster (or HHV-3; the cause of ...
Infection by the type 1 strain of herpes simplex virus (HSV-1) is most common; however, cases of oral infection by the type 2 strain are increasing. [14] Oral HSV-2 shedding is rare, and "usually noted in the context of first episode genital herpes." [21] In general, both types can cause oral or genital herpes. [22] [23] [24]
The HSV is a double-stranded DNA virus categorised into two types; HSV-1 and HSV-2. HSV-1 is predominantly responsible for oral, facial and ocular infections whereas HSV-2 is responsible for most genital and cutaneous lower herpetic lesions. Both HSV-1, and HSV-2 can be the cause of herpetic gingivostomatitis, [5] although HSV-1 is the source ...
It is estimated to affect at least 1 in 500,000 individuals per year, [1] and some studies suggest an incidence rate of 5.9 cases per 100,000 live births. [2] About 90% of cases of herpes encephalitis are caused by herpes simplex virus-1 (HSV-1), the same virus that causes cold sores.
The annual incidence in Canada of genital herpes due to HSV-1 and HSV-2 infection is not known (for a review of HSV-1/HSV-2 prevalence and incidence studies worldwide, see Smith and Robinson 2002). As many as one in seven Canadians aged 14 to 59 may be infected with herpes simplex type 2 virus [ 89 ] and more than 90 per cent of them may be ...