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National, state, and urban area vaccination coverage among children aged 19-35 months--United States, 2003
Insights
The 2003 National Immunization Survey (NIS) shows increased vaccine coverage for children, including varicella and pneumococcal vaccines. However, significant geographic disparities in vaccination rates persist, requiring ongoing public health efforts.
Area of Science:
- Pediatric Public Health
- Immunization Policy
- Epidemiology
Background:
- Maintaining high childhood vaccination coverage is a critical public health challenge in the US.
- The National Immunization Survey (NIS) monitors vaccination rates in children aged 19-35 months across states and urban areas.
Purpose of the Study:
- To summarize the 2003 National Immunization Survey (NIS) findings on vaccination coverage among young children.
- To identify trends and geographic variations in vaccine uptake.
Main Methods:
- The National Immunization Survey (NIS) collected vaccination data from a representative sample of children aged 19-35 months.
- Data analysis focused on coverage rates for individual vaccines and adherence to recommended schedules.
Main Results:
- Nationwide coverage increased for varicella vaccine (VAR) and pneumococcal conjugate vaccine (PCV).
- Overall vaccination coverage reached its highest recorded level.
- Significant geographic variability in coverage rates persisted among states and urban areas.
Conclusions:
- While overall vaccination coverage is improving, sustained public health efforts are necessary to maintain these gains.
- Addressing and reducing geographic disparities in vaccination coverage remains a priority.
Abstract:
Each annual birth cohort in the United States comprises approximately 4 million infants. Maintaining the gains in vaccination coverage achieved during the 1990s among these children poses a continuing challenge for public health practitioners. The National Immunization Survey (NIS) provides estimates of vaccination coverage among children aged 19-35 months for each of the 50 states and 28 selected urban areas. This report summarizes NIS results for 2003, which indicated substantial increases nationwide in coverage with > or =1 dose of varicella vaccine (VAR) and > or =3 doses of pneumococcal conjugate vaccine (PCV) and the highest coverage ever for all vaccines; however, wide variability in coverage continues among states and urban areas. Continued vigilance is needed to maintain high levels of coverage, and sustained efforts will be required to reduce geographic disparities in coverage.
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