On Dec. 10, the U.S. Food and Drug Administration (FDA) approved Gardasil 9 (Human Papillomavirus 9-valent Vaccine, Recombinant) for the prevention of certain diseases caused by nine types of human papillomavirus (HPV). Covering nine HPV types, five more HPV types than Gardasil (previously approved by the FDA), Gardasil 9 has the potential to prevent approximately 90% of cervical, vulvar, vaginal, and anal cancers. Read more.