
http://www.nbcnews.com/health/health-news/two-thirds-world-has-cold-sore-virus-who-n453236
Spoiler:

In the Americas, WHO estimates that 49 percent of women, or 178 million women, have HSV-1 and 39 percent of men, or 142 million, do.
That's the region with the lowest rates. In Africa, 87 percent of people have HSV-1 while it's close to 60 percent in Southeast Asia.
Scary shit.