The connection is now well documented and published in peer reviewed literature, many of the articles are available on the main web site or you can Google Maura Gillison MD at Johs Hopkins to find a list of her work that covers the connections and sexual transmission of the versions of the
HPV virus that has the ability to produce malignancies.. ( 16, 18, 33 and maybe 35 in head and neck cancers) There are over 100 varients of the virus, some only produce benign warts (papillomas).