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Mike Mitka

JAMA. 2004;292:1167.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

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).

Childhood immunization rates for the standard series for young children vary widely in the United States, ranging from a high of 94% in Connecticut to a low . . . [Full Text of this Article]