Tim Schnettler: The vaccine against the human papillomavirus, or HPV, is now approved for adults under age 46 years of age. The United States Food and Drug Administration approved it this month for both men and women from 27 to 45 years old. It was previously approved for people up to age 26. The vaccine is Gardasil 9, and it prevents cervical cancer and other malignancies like oral cancer, which is on the rise, especially among men. The vaccine protects against nine strains of the virus, including those most likely to cause cancers and genital warts.