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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 ...
Herpes simplex virus 1 (cold sores) and 2 (genital herpes) (HSV-1 and HSV-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 contagious. They can be spread when an infected person begins shedding the virus.
Another strain, HSV-2 usually causes genital herpes, although the strains are very similar and either can cause herpes in any location. While the disease is commonly passed through normal human contact, it is strongly associated with contact sports — outbreaks in sporting clubs being relatively common. [ 2 ]
It is very common and contagious; about 67% of the world population under the age of 50 has Herpes simplex virus 1. [5] It is often acquired orally during childhood. It may also be sexually transmitted, including contact with saliva, such as kissing and mouth-to-genital contact ( oral sex ). [ 6 ]
The risk of spread between a couple is about 7.5% over a year. [6] HSV is classified into two types, HSV-1 and HSV-2. [1] While historically HSV-2 was more common, genital HSV-1 has become more common in the developed world. [1] [7] Diagnosis may occur by testing lesions using either PCR or viral culture or blood tests for specific antibodies. [1]
HSV-1 causes 66.3% of genital herpes in the Tel Aviv area. [35] Syria— Genital herpes infection from HSV-2 is predicted to be low in Syria although HSV-1 levels are high. HSV-1 infections is common (95%) among healthy Syrians over the age of 30, while HSV-2 prevalence is low in healthy individuals (0.15%), and persons infected with other ...
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.
Active CMV infection is considered to be present if antibody tests of paired serum samples show a fourfold rise in IgG antibody and a significant level of IgM antibody (equal to at least 30% of the IgG value), or if virus is cultured from a urine or throat specimen. [citation needed]
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