Categories October Surprise 2024 GARDASIL®9 (Human Papillomavirus 9-valent Vaccine, Recombinant) Dosing Post author By Post date October 17, 2026 For persons 9 through 14 years of age, GARDASIL 9 can be given using a 2-dose or 3-dose schedule. For the 2-dose schedule, the second shot should be given 6-12 months after the first shot.