Re: Confusion about general HPV & sexual HPV?
I'm not sure you're ever going to get an 100% accurate answer to your questions. Partly because the medical community just doesn't have all the statistics. There numbers are estimates, and not all forms of HPV are tracked.
I remember one doc I had saying something like "the 75% number is for all people. It's more like 99% for sexually active people" (multiple partners over time).
Also, IMO, there are 3 'groups' of HPV. One group is the type that causes visible genital warts. NO ONE wants that type, for obvious reasons. The second group would be the kind that causes cervical changes/cancer - no one wants that either. The third group is the type that causes warts elsewhere on the body, that nobody seems to care about (hands, feet, legs, arms... basically anywhere but the genitals).
The vaccine only works against 4 strains - 2 strains that cause the most common genital warts, 2 strains that cause the worst cervical cancer.
Basically, if you look at ALL strains of HPV, the answers to you questions would be different than if you were only looking for specific strains.
My last comment is that there is no way you can "know for *absolute sure* that you will only have sex with an STI-free person". There is no HPV test for men, and the carrier might genuinely have no idea he has it. The only way to be 100% sure if if the person has never ever touched another person in his life. Hard to imagine... Basically, accept that there is a small change of getting it even from one partner. Just be careful, behave responsibly, etc., etc.