Interestingly enough it is the Merck website that promotes Gardasil for men to prevent anal cancers... and for those active in the homosexual community I would think that might be something they would consider.
Your snarky response only shows your lack of information
Either you have anal on the brain, or you are unable to completely read the website.
“In boys and young men ages 9 to 26, GARDASIL helps protect against 90% of genital warts cases.”
Copied right from the site.
Really, you should read the material on their website before focusing on anuses.