evidence: - Human papillomavirus (HPV). HPV is a sexually transmitted virus that can lead to cervical cancer and other genital cancers as well as squamous cell cancers of the head and neck. The HPV vaccine is recommended for girls and boys ages 11 and 12. The U.S. Food and Drug Administration recently approved the use of the vaccine Gardasil 9 for males and females ages 9 to 45. [...] People who have HIV or AIDS have a higher risk of cancer of the anus, liver and lung. HPV is most often associated with cervical cancer, but it might also increase the risk of cancer of the anus, penis, throat, vulva and vagina. [...] - HPV vaccines. American Cancer Society. https://www.cancer.org/cancer/cancer-causes/infectious-agents/hpv/hpv-vaccines.html. Accessed Oct. 24, 2022.