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Medical News & Perspectives
September 8, 2004

Improvement Seen in US Immunization Rates

JAMA. 2004;292(10):1167. doi:10.1001/jama.292.10.1167

Immunization rates for US children aged 19 to 35 months reached their highest levels ever in 2003, but factors such as parental perceptions continue to limit coverage.

The Centers for Disease Control and Prevention's (CDC) National Immunization Survey found that 2003 coverage for the standard immunization series for young children increased to about 79%, up from nearly 75% in 2002 and 74% in 2001. The recommended 4:3:1:3:3 series includes 4 doses of diphtheria, tetanus, and pertussis (DPT) vaccine, 3 doses of polio vaccine, 1 dose of measles-containing vaccine (MCV), 3 doses of Haemophilus influenzae type b (Hib) vaccine, and 3 doses of hepatitis B (HepB) vaccine, generally administered between birth and 18 months (MMWR Morb Mortal Wkly Rep. 2004;53:658-661).