Gardasil 9 helps prevent cancers that include which sites?

• A. Lung and brain cancers
• B. Cervical, vaginal, vulvar, anal, and oropharyngeal cancers
• C. Colorectal cancer
• D. Skin cancer

Answer: (B)

HPV infection drives the development of several cancers, and the vaccine works by preventing infection with the high‑risk HPV types that cause them. Gardasil 9 covers the types most commonly linked to cancer, so it helps prevent cancers at the cervix, vagina, vulva, anus, and oropharynx. Those sites are HPV-related cancers, whereas cancers like those of the lung, brain, colon, or skin arise from other causes and are not prevented by this vaccine. By stopping infection with these high‑risk types, the vaccine also lowers the risk of precursor lesions that can lead to cervical cancer. Vaccination is most effective when given before exposure to HPV, typically in preadolescence.