One dose of a human papillomavirus (HPV) vaccine was noninferior to two doses in preventing infection, data from a randomized ...

Gardasil is a vaccine, licensed for use in June 2006, by the FDA. It targets four strains of human papillomavirus (HPV) -- HPV-6, 11, 16, and 18. HPV-16 and HPV-18 account for about 70% of all ...