>I highly doubt that HSV-1 is anywhere near 60% in the pool of astronaut candidates. Disease presence is correlated: if you have one, you probably have another. Since lots of other diseases would already be disqualifying, adding HSV-1 to the checklist won't strike off very many potential astronauts.
I took exception to the claim that having cold sores meant you were otherwise "diseased". Can it have long term effects? Yes, but I don't believe an increased long term cancer risk means you're not able to become an astronaut.
Repeated (chronic) bacterial or viral wounding doesn't result in increased cancer risks? I find that hard to believe.