“Herpes is caused by sexual intimacy and contact with a person who is actively shedding the herpes virus,” says Cullins. If you have HSV-1, that shedding could happen through the mouth or a cold sore, which means that the virus can be transmitted through kissing, or just sharing a drink. If you have herpes that affects the genitals, it can be transmitted from sharing sex toys, grinding, or even mutual masturbation — any activity where the virus can be transmitted from one person to another through skin-to-skin or mucosal contact.

In this article, we will discuss what you need to know about the herpes virus. Herpes has been around for thousands of years. During most of this time, it has not been very well understood. It was not known to be caused by a virus until the 19405. Not until late in the 1960s were two separate viruses isolated. Physicians confidently misdiagnosed the disease until only recently. More has been written and learned about herpes in the last two years than in the last two thousand years put together.
Until the 1980s serological tests for antibodies to HSV were rarely useful to diagnosis and not routinely used in clinical practice.[39] The older IgM serologic assay could not differentiate between antibodies generated in response to HSV-1 or HSV-2 infection. However, a glycoprotein G-specific (IgG) HSV test introduced in the 1980s is more than 98% specific at discriminating HSV-1 from HSV-2.[40]
Oral herpes is also known commonly as cold sores and fever blisters but is different entity from oral canker sores although canker sores may sometimes be associated with HSV infection. Canker sores occur solely inside the mouth. Oral herpes occurs inside and around the mouth. Most of the time HSV-1 causes mouth symptoms and in a minority of cases it may also be responsible for genital symptoms. The opposite is true for HSV-2 – it causes genital symptoms in the majority of cases while only a few cases of HSV-2 infection will result in mouth symptoms. HSV-1 infection may be seen in all ages, including children, but when genital herpes is seen in children, sexual abuse needs to be a consideration.
Herpes viruses typically infect the oral or genital mucosa. When herpes affects the mouth, it causes the typical "cold sores," which are painful sores or blisters that form on the lips, mouth, or gums. Prior to the development of the blisters, there may be a prodrome (early symptoms indicating onset of a particular disease) consisting of an itching, burning, or tingling sensation in the affected area. The virus remains dormant in the nervous system throughout life, and this is the reason that cold sores often recur in the same location.
HSV-1 and HSV-2 are transmitted by direct physical contact with a sore on an infected person. Facial or lip herpes is most often contracted by kissing someone with a cold sore. Genital herpes is most often contracted during sexual intercourse with a person who has an active genital sore. Genital herpes can also be contracted during or genital sex if a partner has labial herpes.
Because the herpes virus is so common most people who have either genital or oral herpes do not know that they have it.   Additionally, the symptoms of HSV1 or 2 may be mild or at time, may not appear for days, weeks, or even years and sometimes no symptoms of herpes are present at all.  It is important to note that symptoms do not have to be present in order to contract this virus, so it is important that you prevent transmission through proper hygiene and awareness.
This means they cannot function independently outside the living cell. Once inside, however, they provide a far different picture. They are parasitic. This means they live off the host at the host’s expense. Unless you have already been exposed to a particular virus, your body is essentially unable temporarily to prevent viral multiplication inside your body.

As of 2017, there is not currently a herpes vaccine available to prevent HSV-1 or HSV-2. (There is a vaccine available for another virus, herpes zoster; however, despite the similar name, it actually refers to the shingles virus. And, in fact, shingles occurs due to the reactivation of yet another virus, varicella zoster, which causes chicken pox.)
A person may show symptoms within days after contracting genital herpes, or it may take weeks, months, or years. Some people may have a severe outbreak within days after contracting the virus while others may have a first outbreak so mild that they do not notice it. Because of these possibilities, it can be difficult for people to know when and from whom they may have contracted the virus.
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