Continuing Coverage: Many American girls do not receive the human papillomavirus vaccine at the recommended age, a new UTMB study finds. Girls should begin getting the three-dose HPV vaccine when they are 11 or 12. The vaccine is most effective before girls become sexually active, according to the CDC. "Rates of HPV infection increase significantly every year for young people between 14 and 24, so vaccination at a young age is very important,” said UTMB lead author Mahbubur Rahman. The news also appears in WebMD, BioNews Texas, The Philadelphia Inquirer, The Clinical Advisor, Monthly Prescribing Reference, Design and Trend, Vaccine News Daily, Doctor’s Lounge, All Voices and Headlines and Global News.