What kind of herpes are there
More than one out of every six people aged 14 to 49 years have genital herpes. You can get genital herpes by having vaginal, anal, or oral sex with someone who has the disease. If you do not have herpes, you can get infected if you come into contact with the herpes virus in:. You can get herpes from a sex partner who does not have a visible sore or who may not know he or she is infected.
It is also possible to get genital herpes if you receive oral sex from a sex partner who has oral herpes. You will not get herpes from toilet seats, bedding, or swimming pools, or from touching objects around you such as silverware, soap, or towels. If you have additional questions about how herpes is spread, consider discussing your concerns with a healthcare provider. If you are sexually active, you can do the following things to lower your chances of getting genital herpes:. Be aware that not all herpes sores occur in areas that are covered by a latex condom.
Also, herpes virus can be released shed from areas of the skin that do not have a visible herpes sore. For these reasons, condoms may not fully protect you from getting herpes. If you are in a relationship with a person known to have genital herpes, you can lower your risk of getting genital herpes if:. If you are pregnant and have genital herpes, it is very important for you to go to prenatal care visits. Tell your doctor if you have ever had symptoms of, or have been diagnosed with, genital herpes.
Also tell your doctor if you have ever been exposed to genital herpes. There is some research that suggests that genital herpes infection may lead to miscarriage, or could make it more likely for you to deliver your baby too early. Herpes infection can be passed from you to your unborn child before birth but is more commonly passed to your infant during delivery.
This can lead to a potentially deadly infection in your baby called neonatal herpes. It is important that you avoid getting herpes during pregnancy. If you are pregnant and have genital herpes, you may be offered anti-herpes medicine towards the end of your pregnancy. This medicine may reduce your risk of having signs or symptoms of genital herpes at the time of delivery. At the time of delivery, your doctor should carefully examine you for herpes sores.
Most people who have genital herpes have no symptoms, or have very mild symptoms. You may not notice mild symptoms or you may mistake them for another skin condition, such as a pimple or ingrown hair.
Because of this, most people who have herpes do not know it. Herpes sores usually appear as one or more blisters on or around the genitals, rectum or mouth. The blisters break and leave painful sores that may take a week or more to heal. People who experience an initial outbreak of herpes can have repeated outbreaks, especially if they are infected with HSV Replication begins with the binding of the virion to the plasma membrane of the host cell and is followed by fusion of the virion envelope with the host cell membrane.
The capsid and tegument are released into cytoplasm and are transported to into nucleus. Viral DNA is then released in the nucleus, followed by transcription, replication, and assembly of new capsids.
Caspids egress from the nucleus and are released from the cell plasma membrane by exocytosis. Most human herpesviruses are transmitted from person-to-person when a susceptible individual has direct physical contact with an infected person.
Some herpesviruses may also spread through airborne transmission. The cytomegalovirus CMV is the only member of the human herpesviruses commonly spread through vertical transmission from mother to child. Herpesviruses, which are able to remain latent, cause recurring infections and cannot be completely eliminated from the host. Like its close relative, HHV1, herpes zoster likes to infect skin cells and nerve cells. This virus may also recur along nerve fibre pathways, causing multiple sores where nerve fibres end on skin cells.
Because an entire group of nerve cells is often affected, shingles is generally much more severe than a recurrence of herpes simplex. The lesions generally appear in a band-like or belt-like pattern occurring on one side of the body and are often accompanied by itching, tingling, or even severe pain.
Healing usually occurs in 2 to 4 weeks, and scars may remain. Postherpetic neuralgia is a complication of shingles where the pain associated with the infection can persist for months and even years. Most people who experience shingles once do not experience it again. It is the major cause of infectious mononucleosis, or "mono" - the "kissing disease.
Coughing, sneezing, or sharing eating utensils with an infected person can pass the virus from one person to another. CMV is also a cause of mononucleosis. In people with healthy immune systems, the virus may not even cause any symptoms. It can be sexually transmitted, can cause problems to newborns, and can cause hepatitis.
CMV can be transmitted through sexual contact, breast-feeding, blood transfusions, and organ transplants. It may lead to diarrhea, severe vision problems including blindness, infections of the stomach and intestines, and even death.
For a virus that barely causes a problem in most people with healthy immune systems, it can be amazingly nasty in people with damaged immune systems, such as people with AIDS. Human herpes virus 6 HHV6 is a recently observed agent found in the blood cells of a few patients with a variety of diseases.
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