According to that link in your post, women shed virus 4.3% of the time… so it means that 95% of the time HSV cannot be transmitted (i.e. no asymptomatic viral shedding)? Just trying to figure out my risks since condoms are not very effective against HSV.
Hi soulium
You need the HSV virus to be shedding for there to be a risk to you.
I will have to change the information on the healthnurse site. The 4.3% shedding figure for woman was based on studies done a few years ago were they did just one swab test per day to see if there was any virus present.
Recent studies have been doing a swab test to the genitals every 6 hours. One study of 25 people found that the virus could be found on 20% of the days and 14% of the 6 hour periods.
This has changed a lot of the thinking around genital HSV. It seems that most people had no symptoms and that the virus came quickly and was gone within 12 hours from the genitals.
There information showed that there was also a lot of difference in shedding between each individual. There was a mix of men and woman in the study.
In summary it is hard to predict when there could be HSV type 2 present when having genital sex. The above gives us a bit of an idea at 14% of 6 hour periods.
Just because someone is shedding HSV doesn’t mean you will automatically catch it.
The things we know that can reduce your risk are:
(1) Condoms will reduce your risk to HSV by about 50%.
(2) Don’t have sex while someone is having an outbreak.
(3) Daily suppressive therapy with antiviral medication (some studies have shown this will reduce risk by 48%)
HN
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