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SinergyNstrumpet -> RE: HPV (3/19/2008 10:02:59 PM)
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quote:
ORIGINAL: Sunnyfey
sweetheart I suspect it ALOT more then 25%...that 25% of the population KNOWS they have it....think of all those people who NEVER get an outbreak and still have it? You cant get tested for it UNTILL you have an outbreak....So...scary...yeah I bet its alot more then 25%
According to a link posted by DomKen in off topic
quote:
By comparison, HSV-2 is widely believed to be a painful, dangerous infection that affects only people with very active sex lives. The reality? Some 22% of adult Americans from all backgrounds, income levels, and ethnic groups have HSV-2. Like HSV-1, type 2 is usually mild-so mild that two- thirds of infected people don't even know they have it. Type 2 rarely causes complications or spreads to other parts of the body. It is the most common cause of neonatal herpes, a rare but dangerous infection in newborns; however, type 1 causes up to one-third of neonatal infections.
and another portion of the page
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From here, however, the question of transmissibility gets more complicated. Acquisition of one type is more difficult-though certainly possible-if you already have the other type. This is because either type, contracted orally or genitally, causes the body to produce antibodies, some of which are active against both HSV-1 and 2. This acquired immune response gives some limited protection if the body encounters a second type. When a person with a prior HSV infection does contract the second type, the first episode tends to be less severe than when no prior antibodies are present. On a practical level, this means oral HSV-1 is often the most easily acquired herpes infection. Usually the first herpes simplex virus that people encounter, oral HSV-1, is typically spread simply by the kind of social kiss that a relative gives a child. Because children have no prior infection with any HSV type, they have no immune defense against the virus. By the time they're teenagers or young adults, about 50% of Americans have HSV-1 antibodies in their blood. By the time they are over age 50, some 80-90% of Americans have HSV-1 antibodies. By comparison, almost all HSV-2 is encountered after childhood, when people become sexually active. Those who have a prior infection with HSV-1 have an acquired immune response that lowers - though certainly doesn't eliminate-the risk of acquiring HSV-2. According to one study (Mertz, Annals of Internal Medicine,1992), previous oral HSV-1 infection reduces the acquisition of subsequent HSV-2 infection by 40%.
So basically there are far fewer people with HSVII because most people acquire partial immunity by getting HSVI first when they are children
julia
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