HPV infection

Gardasil 9 is an HPV vaccine approved by the U.S. Food and Drug Administration and can be used for males and females to protect against cervical cancer and genital warts.

The Centers for Disease Control and Prevention (CDC) recommends routine HPV vaccination for girls and boys ages 11 and 12, although it can be given as early as age 9. It's ideal for girls and boys to receive the vaccine before they have sexual contact and are exposed to HPV. Research has shown that receiving the vaccine at a young age isn't linked to an earlier start of sexual activity.

Once someone is infected with HPV, the vaccine might not be as effective or might not work at all. Also, response to the vaccine is better at younger ages than older ones. But, if given before someone is infected, the vaccine can prevent most cases of cervical cancer.

The Centers for Disease Control and Prevention (CDC) recommends that all 11- and 12-year-olds receive two doses of HPV vaccine at least six months apart. Younger adolescents ages 9 and 10 and teens ages 13 and 14 can also receive vaccination on the updated two-dose schedule. Research has shown that the two-dose schedule is effective for children under 15.

Teens and young adults who begin the vaccine series later, at ages 15 through 26, should continue to receive three doses of the vaccine.

The CDC recommends catch-up HPV vaccinations for all people through age 26 who aren't adequately vaccinated.

The U.S. Food and Drug Administration recently approved the use of Gardasil 9 for males and females ages 9 to 45. If you're age 27 to 45, discuss with your doctor whether he or she recommends that you get the HPV vaccine.