Re: hpv forever?
This is true for high risk HPV (the way I understand the current information that the Center for Disease Control gives out). I don't know much about warts, so I can't help you there.
There are over 100 strains of HPV. More than 20 of those effect the genitals (including cervix, uterus, vagina, vulva, anus, penis, throat/mouth). Of those 20+ strains, they are basically divided into 2 catagories, high risk and low risk. Low risk HPV cause genital warts, high risk HPV can lead to cancer (of any of the above mentioned body parts) if undetected and/or unchecked. It is possible to have more than one strain of HPV. It is possible to have high risk and low risk HPV at the same time.
I hope that helps.