Hepatitis B vaccination coverage among United States children

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Abstract
In 1991 the Advisory Committee on Immunization Practices recommended vaccination of all infants with three doses of hepatitis B virus vaccine (HepB) by 18 months of age as a key component of a comprehensive strategy to eliminate hepatitis B virus transmission in the United States. The American Academy of Pediatrics and the American Academy of Family Physicians published similar recommendations soon afterward. Data were obtained from the National Immunization Survey, a survey that began in 1994 and is conducted quarterly by the Centers for Disease Control and Prevention to estimate vaccination coverage among noninstitutionalized US children 19 to 35 months of age. The 1999 National Immunization Survey data indicate that ∼88.1% (95% confidence interval, 87.4, 88.8) of children 19 to 35 months of age had received at least three doses of HepB (HepB3). There has been a consistent increase in HepB3 coverage since 1994. However, the rate of increase has slowed in recent years and HepB3 coverage remains lower than coverage attained with three doses of diphtheria-tetanus-pertussis and Haemophilus influenzae vaccines. HepB3 coverage varied slightly by race/ethnicity and was highest among white and Asian children (89%). Coverage also varied by state; 26 states had levels of at least 90%. Since the 1991 recommendations for universal hepatitis B vaccination, there has been a dramatic increase in coverage levels among children 19 to 35 months of age. However, the Childhood Immunization Initiative goal of 90% coverage has not been reached. Therefore continued efforts are needed to protect US children against this serious but preventable infection.