National and state vaccination coverage among adolescents aged 13-17 years--United States, 2011.

Since 2005, the Advisory Committee on Immunization Practices (ACIP) has expanded the routine adolescent vaccination schedule with administration of the following vaccines at ages 11 or 12 years: meningococcal conjugate (MenACWY), 2 doses; tetanus, diphtheria, acellular pertussis (Tdap), 1 dose; human papillomavirus (HPV), 3 doses; and influenza, 1 dose annually. To assess vaccination coverage among adolescents aged 13-17 years, CDC analyzed data from the National Immunization Survey-Teen (NIS-Teen). This report summarizes the results of that assessment, which indicated that, from 2010 to 2011, vaccination coverage increased for ≥1 dose Tdap on or after age 10 years (from 68.7% to 78.2%), ≥1 dose MenACWY (from 62.7% to 70.5%), and, among females, for ≥1 dose of HPV (from 48.7% to 53.0%) and ≥3 doses of HPV (from 32.0 to 34.8%). Vaccination coverage varied widely among states. Interventions that increase adolescent vaccination coverage include strong recommendations from health-care providers, urging consideration of every health visit as an opportunity for vaccination, reducing out-of-pocket costs, and using reminder/recall systems. Despite increasing adolescent vaccination coverage, the percentage point increase in ≥1 dose HPV coverage among adolescent females was less than half that of the increase in ≥1 dose of Tdap or MenACWY. The causes of lower coverage with HPV vaccine are multifactorial; addressing missed opportunities for vaccination, as well as continued evaluation of vaccination-promoting initiatives, is needed to protect adolescents against HPV-related cancers.