The American Cancer Society endorsed the CDC's Advisory Committee on Immunization Practices' new human papilloma virus vaccination recommendations on Tuesday.
The new recommendations call for a two-dose schedule for boys and girls who receive their first vaccine dose from ages nine to 14.
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While the ACIP previously endorsed a three-dose regimen for the vaccine, studies suggest two doses remain just as effective in adolescents under the age of 15.
"In the past several years, studies have shown the vaccine is even more effective than expected," said Debbie Saslow, PhD, a senior director in the ACS' cancer control department. "This new two-dose regimen is easier to follow, and we now know is very effective in preventing HPV, which is linked to a half dozen types of cancer."
In 2015, only 28 percent of boys and 42 percent of girls aged 13 to 17 years received the recommended three-dose HPV vaccine.
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