Definition

A vaccine that is FDA-approved for use in females and males aged 9 to 45 years to protect against infection with nine types of human papillomavirus (HPV). Gardasil 9 protects against low-risk HPV types 6 and 11, which cause most genital warts, and against high-risk HPV types 16, 18, 31, 33, 45, 52, and 58, which cause most precancerous lesions and cancers of the cervix, vagina, vulva, anus, and head and neck, including the oropharynx. Gardasil 9 may also prevent HPV-related cancer of the penis. Also called recombinant human papillomavirus nonavalent vaccine.