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HPV vaccination rate still lagging

ATLANTA — Only about half of US teenage girls have received a controversial cervical cancer vaccine — a rate that’s changed little in three years.

‘‘We’re dropping the ball,’’ said Dr. Thomas Frieden, head of the Centers for Disease Control and Prevention. ‘‘This is a huge disappointment.’’

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About 54 percent of teenage girls have received at least one of the three HPV shots. Only a third were fully immunized with all three doses.

Last year’s rates were essentially unchanged from 2011, and up only slightly from 2010. Rates for other vaccines aimed at adolescents have risen much faster.

A big part of the problem: Family doctors aren’t prodding patients to get HPV shots as forcefully as they recommend other vaccines.

The vaccine, introduced in 2006, protects against human papillomavirus, or HPV. The sexually transmitted disease can cause cervical cancer and genital warts. The vaccine was first recommended for girls ages 11 and 12 because it works best if given before a teen starts to have sex. In 2011, it was also recommended for boys that age to help prevent the virus’s spread.

More than 20 states have considered adding HPV to the vaccines required for school attendance but only Virginia and the District of Columbia did so. Most states abandoned it after political fights triggered by funding woes, concerns about the vaccine’s safety, and worries that the shots would promote promiscuity.

CDC studies have shown no significant side effects and girls who got the shots did not start having sex earlier.

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