ABC News: The Oral Sex Cancer Connection: "The virus is transmitted by direct contact. You only get HPV in the location it attaches to, so it never travels through the bloodstream.
So just exactly how it gets in the mouth may stun you.
'There is absolutely a link between oral sex and oral cancer,' said Dr. Ellen Rome, of the Cleveland Clinic.
Although no proof exists yet, there is a chance that HPV can be transmitted mouth to mouth.
'We can't rule out the virus could be transmitted in saliva by other types of contact — like for instance sharing a drink or sharing a spoon,' said Dr. Maura Gillison, of Johns Hopkins Kimmel Cancer Center."