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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 ...
There are two types of herpes simplex virus, type 1 (HSV-1) and type 2 (HSV-2). [1] HSV-1 more commonly causes infections around the mouth while HSV-2 more commonly causes genital infections. [2] They are transmitted by direct contact with body fluids or lesions of an infected individual. [1] Transmission may still occur when symptoms are not ...
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 ...
Human alphaherpesvirus 2 or Herpes simplex virus 2 (HHV-2 or HSV-2) is a species of virus in the genus Simplexvirus, subfamily Alphaherpesvirinae, family Herpesviridae, and order Herpesvirales. [ 1 ] Evolution
The Human alphaherpesvirus 1 virus can be classified into six clades. [2] Four of these occur in East Africa, one in East Asia and one in Europe and North America. This suggests that the virus may have originated in East Africa. The most recent common ancestor of the Eurasian strains appears to have evolved ~60,000 years ago. [3]
The cause is usually herpes simplex virus type 1 (HSV-1) and occasionally herpes simplex virus type 2 (HSV-2). [1] The infection is typically spread between people by direct non-sexual contact. [ 5 ] Attacks can be triggered by sunlight , fever , psychological stress , or a menstrual period .
Genital herpes is a herpes infection of the genitals caused by the herpes simplex virus (HSV). [1] Most people either have no or mild symptoms and thus do not know they are infected. [ 1 ] When symptoms do occur, they typically include small blisters that break open to form painful ulcers . [ 1 ]
(1) nucleoprotein, (2) DNA, (3) capsid, (4) tegument, (5) envelope, (6) glycoprotein. Click to enlarge. Electron micrograph of various viruses from the Orthoherpesviridae family including Human alphaherpesvirus 3 ( Chickenpox ), Human alphaherpesvirus 1 , and Human alphaherpesvirus 2
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