Many statistics show the herpes virus to be rather common compared to many other STDs (Sexually Transmitted Disease). One such study was conducted nationally among Americans only. The virus was showed to be prevalent in atleast 45,000,000 (million) people over the age of twelve. That is about 20% of teenageers and adults. At first glance one might look at that staggering statistic and get the wrong impression that the virus is becomming more common. This is not the case, the percentage of infections has actually decreased in the US in the last 10 years.
There are multiple types of herpes infection but the HSV-2 infection occurs more prevalently in women. About 25% of women have it where men is closer to 12.5%. Many experts believe this is due to the fact that transmission is passed to women easier than men for obvious reasons.