While some infected individuals have frequent outbreaks, most never have symptoms and others have only one or two outbreaks.About 16% of American adults are infected with the virus of the herpes simplex type 2 (HSV-2) some people will more frequently shed the virus, while that of other it lay less infection oftenThe can lead to complications in people with weakened immune system(Canstar) - people with genital herpes virus, but have no visible symptoms - and are not even aware that they are infected - are still capable of spreading the virus about 10% of the time, according to a new study in the Journal of the American Medical Association.
About 16% of American adults are infected with a virus of the herpes simplex 2 (HSV-2), which may cause bumps, blisters or sores on the genitals and surrounding areas, with pain and itching.
But only about 10% to 25% of these people know they carry the virus. While some infected individuals have frequent outbreaks, most never have symptoms and others have only one or two outbreaks.
Previous research has shown that of HSV-2 infected people can transmit the virus to someone else by genital contact, even if they do not have symptoms. The new study – the largest of its kind to date - allows to quantify this risk, explains Christine Johnston, M.D., one of the authors of the study and Assistant Professor a.i. of medicine at the University of Washington in Seattle.
"Many times people are living with HSV-2 by an antibody test and they do not know what to do with this information, said Johnston." "" I think that we have a number we can tell people. ?
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The study included 498 adults with healthy immune system who had a diagnosis of genital herpes or who tested positive for HSV-2. Every day for at least 30 days, the participants themselves inspected for symptoms and collected a swab genital secretions, which have been stored and later analyzed in a laboratory.
410 People with a history of herpes symptoms were found to be "loss" active virus on 20% of the days for which they have collected swabs, compared to 10% of the days for those who had never known symptoms.
The asymptomatic people out the same amount of virus when they were shedding symptomatic as people when they were not the experience of the outbreak. (The amount of virus increased if symptoms were present).
The figure of 10% is an average, Johnston notes; Some people will shed the virus more frequently, while others lay less often. She added: "People will interpret the risk very differently,". "Some people feel like 10%, it is much, and some people will feel that 10% is a little bit."
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"[The study] just begs the point that safe sex is important, and you had better knowledge which is your partner," says Richard d. Whitley, M.D., former President of the Infectious Disease Society of America and a Professor of medicine at the University of Alabama at Birmingham. Whitley is an expert on herpes but was not involved in the present study.
You need to know if they have HSV-2, said Whitley. Apart from the risk of unintentionally infect sexual partners, pregnant with no symptoms can transmit the virus to their babies with disastrous consequences for the newborn death. (The risk of transmission is as high as 30% to 50% if the mother is infected during its third quarter).
In addition, HSV-2 infection can lead to complications in people with weakened immune systems due to chronic illness, and it can increase likelihood of a person contracting HIV, Whitley said.
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Persons with HSV-2 can protect their partners of contracting the virus by the use of male or female condoms during sex and taking drugs of virus removal. Each measure reduces the risk of transmitting the virus to a sexual partner by half.
Some people with herpes take antiviral drugs for years, while that of other fair use periodically - for example, when they are from a new relationship or anticipating a high pressure situation. (The stress can increase the risk of an outbreak of herpes). "This is really a very personal decision for patients," says author Health Magazine 2010 Johnston.Droit
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