People can be HPV + one month and negative the next. Yes you could develop a positive area remote from other common areas to have HPV. There is only one FDA approved test by Digene for HPV, and right now it is only applicable to the cervix. That is collected by brush cytology. In the mouth you would have to look at the removed tissue itself.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.