As long as they marry men who are also virgins. If they marry a man who had unprotected sex with a woman who was infected with HPV, they will probably be infected. Planning to remain a virgin until marriage is a lofty goal, often not achieved.
Particularly when we have an enemedia culture pushing the notion that people are no different from Tom Cats and anyone who behaves differently is abnormal.
But there was a time in the not so distant past when what my wife and I did was perfectly normal. And, so far, we're batting 1.000 with our three daughters and one son-in-law, the youngest of whom turns 20 next month.