what is the difference between herpes 1 an 2?
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HSV-1 is mainly transmitted by oral-to-oral contact to cause oral herpes (which can include symptoms known as “cold sores”), but can also cause genital herpes. HSV-2 is a sexually transmitted infection that causes genital herpes. Both HSV-1 and HSV-2 infections are lifelong.
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Herpes can appear in various parts of the body, most commonly on the genitals or mouth. There are two types of the herpes simplex virus. HSV-1: primarily causes oral herpes, and is generally responsible for cold sores and fever blisters around the mouth and on the face.
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This test is intended for use as an aid in the diagnosis of herpes simplex virus (HSV) infections with active viral shedding; it also differentiates HSV-1 from HSV-2. Negative HSV NAA results indicate lack of viral shedding but do not confirm absence of previous infection.
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Oral herpes (HSV-1) is usually transmitted by kissing, and genital herpes (HSV-2) is most often spread through vaginal, anal, or oral sex. Both HSV-1 and HSV-2 can cause genital herpes, but genital herpes is most commonly caused by HSV-2. There's no need to swear off kissing forever on account of herpes, though.
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HSV1: Approximately 95% of positive and 99% of negative tests are correct. HSV-2: Approximately 94% of positive and 99% of negative tests are correct.
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So cold sores are only caused by HSV-1? Both HSV-1 and HSV-2 can cause cold sores on the mouth and face. Although it's more common for HSV-1 to cause cold sores, it isn't impossible for HSV-2 to cause them, too.
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Herpes outbreaks usually last for about one to two weeks, though the first outbreak after infection may last longer. The symptoms typically go away on their own without treatment.
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PCR finds the genetic material ( DNA ) of the HSV virus. This test can tell the difference between HSV-1 and HSV-2. Using the PCR test on skin sores isn't common. PCR is used mainly for testing spinal fluid in rare cases when herpes may have caused an infection in or around the brain.
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Early symptoms tend to happen around 2 to 12 days after infection. There are two phases, latent and prodrome. Latent phase: Infection has occurred but there are no symptoms. Prodrome (outbreak) phase: At first, the symptoms of a genital herpes outbreak are typically mild.
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Genital herpes caused by HSV-1 can be asymptomatic or can have mild symptoms that go unrecognized. When symptoms do occur, genital herpes is characterised by 1 one or more genital or anal blisters or ulcers. After an initial genital herpes episode, which may can be severe, symptoms may recur.
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The average number of outbreaks for a person with genital HSV-2 is four to five per year. The average for genital HSV-1 is less than one outbreak per year. Usually, there are more outbreaks during the first year, and many people find that outbreaks become less severe and less frequent with time.
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HSV-1 and HSV-2 infection puts newborns at high risk for developing severe and life-threatening symptoms, including: Fatal organ damage, including the liver, lungs, and heart. Serious viral infections, such as viral meningitis. Recurrent sores on the skin, eyes, genitals, or mouth.
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The first outbreak (also called the “first episode” or “initial herpes”) usually starts about 2 to 20 days after you get infected with herpes. But sometimes it takes years for the first outbreak to happen. The first herpes outbreak lasts about 2 to 4 weeks.
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Transmission. HSV-2 is mainly transmitted during sex, through contact with genital surfaces, skin, sores or fluids of someone infected with the virus. HSV-2 can be transmitted from skin in the genital or anal area that looks normal and is often transmitted in the absence of symptoms.
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HSV-1 and -2 infections can both be transmitted sexually, with semen being the major carrier of viral particles. As stated above, most cases of sexually transmitted herpes are caused by HSV-2, but in recent years, the number of cases caused by HSV-1 has risen [10].
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Like HSV-1, it is highly contagious and spreads through direct contact. About 11% of people aged 14 to 49 are infected with HSV-2, although many never experience any symptoms. HSV-2 usually causes genital herpes. It's typically spread through sexual intercourse and tends to affect women more than men.
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Labs and Tests. If you have symptoms of HSV type 1 or 2, your doctor can diagnose a herpes infection by looking at your skin and/or by swabbing the sores to test for evidence of the herpes virus. If you do not have obvious symptoms, a blood test can help determine whether you have an infection.