It's not yet clear if the drug Gardasil, the vaccine intended to prevent the human papillomavirus (HPV) in females, is effective for men. But some men are signing up for the chance to take the drug.Gay and bisexual men in San Francisco are asking their doctors for the vaccine with hopes it will prevent anal and penile cancer, also caused by HPV.
"The prevalence of anal cancer among gay and bisexual men is very high," says Jason Riggs, spokesman for the STOP AIDS Project. "So that's why some people are looking at this as a possible preventive cure for anal cancer and HPV that causes anal cancer."
Anal cancer occurs among gay and bisexual men at a rate 35 times higher than that of the general population. And it occurs more in those infected with HIV.










