1 dose of HPV vaccine now recommended for younger groups, immunization committee says
The National Advisory Committee on Immunization is now recommending one dose of HPV vaccine for children and youth between nine and 20 years old.
It is maintaining its two-dose recommendation for people 21 to 26 years old.
The committee says research shows that one dose of the vaccine is highly effective against human papillomavirus infection, but those studies have mostly been done in females between nine and 20 years of age.
It also says that people who are immunocompromised and those living with HIV should continue to receive three doses of the HPV vaccine.