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Robert L. Davis, MD, MPH

JAMA. 2000;283:1339-1340.

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

The article by Feikema and colleagues¹ in this issue of THE JOURNAL suggests that extraimmunization of children occurs considerably more often than previously appreciated. Using data from the National Immunization Survey, Feikema et al examined the immunization histories of more than 22,000 children aged between 19 and 35 months. The National Immunization Survey used 2 steps to collect information: in the first, parents with eligible children were identified, and in the second, the child's immunization records were obtained from their health care provider. The proportion of children who received extra immunization doses ranged, by individual vaccine, from 2.5% for measles-containing vaccine to more than 14% for poliovirus vaccine. Taken together, up to 21% of all children were reported to have received at least 1 extra immunization before their third birthday. In the multivariate analysis of risk factors for extraimmunization, Feikema and colleagues found that children . . . [Full Text of this Article]

Author Affiliation: Immunization Studies Program, Group Health Cooperative Center for Health Studies, and Departments of Pediatrics and Epidemiology, University of Washington, Seattle.

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RELATED LETTER

Extraimmunization in Children Through 2000
Tara W. Strine, Lawrence E. Barker, Ram B. Jain, Michael L. Washington, Susan Y. Chu, and Ali H. Mokdad
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Extraimmunization Among US Children
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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Extraimmunization in Children Through 2000
Strine et al.
JAMA 2002;287:588-589.
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