Health Services offers the HPV vaccine, Gardasil 9, which can prevent genital warts and many kinds of cancers in both males and females ages 9 to 26. Gardasil 9 is given as 3 injections over 6 months. The second dose is given 2 months after the first dose. The third dose is given 6 months after the first dose. For the best protection, all three doses should be given on time.