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National, state, and local area vaccination coverage among children aged 19-35 months --- United States, 2009
Insights
Childhood immunization coverage in 2009 showed increases for the hepatitis B (HepB) birth dose and hepatitis A (HepA) vaccine. Coverage for pneumococcal conjugate vaccine (PCV) remained stable, while rotavirus vaccine uptake was 43.9%.
Area of Science:
- Public Health
- Epidemiology
- Immunization Practices
Background:
- The National Immunization Survey (NIS) has monitored childhood immunization coverage since 1994.
- Recent years have seen the introduction and recommendation of new vaccines for children.
Purpose of the Study:
- To report 2009 childhood immunization coverage estimates for children aged 19–35 months.
- To focus on recently recommended vaccines: hepatitis B (HepB) birth dose, hepatitis A (HepA), pneumococcal conjugate vaccine (PCV), and rotavirus vaccine.
Main Methods:
- Analysis of data from the 2009 National Immunization Survey.
- Estimation of vaccination coverage rates for children born between January 2006 and July 2008.
Main Results:
- Vaccination coverage increased for HepB birth dose (60.8%) and HepA (46.6%) in 2009 compared to 2008.
- PCV (≥4 doses) coverage remained stable at 80.4%; rotavirus vaccine coverage was 43.9%.
- Coverage for poliovirus, MMR, HepB, and varicella vaccines remained at or near 90%, with slight decreases for MMR and HepB.
Conclusions:
- Childhood vaccination coverage generally remained high in 2009, with increases in some newer vaccines.
- The percentage of unvaccinated children remained low (<1%).
- Vaccination efforts were maintained despite challenges like vaccine shortages and safety concerns.
Abstract:
Since 1994, the National Immunization Survey (NIS) has been collecting data to monitor childhood immunization coverage. This report describes the 2009 NIS coverage estimates for children born during January 2006--July 2008 and focuses on the more recently recommended vaccines (i.e., hepatitis B [HepB] vaccine birth dose, hepatitis A vaccine [HepA], pneumococcal conjugate vaccine [PCV], and rotavirus vaccine) for children aged 19--35 months. The most recent NIS data indicate that vaccination coverage increased in 2009 compared with 2008 for HepB birth dose (from 55.3% to 60.8%) and HepA (from 40.4% to 46.6%), but coverage for PCV (≥4 doses) remained stable (80.4%). Full coverage for rotavirus vaccine was 43.9% among children born within 2 years of licensure. Coverage for poliovirus (92.8%), measles, mumps, and rubella (MMR) (90.0%), hepatitis B (HepB) (92.4%), and varicella (VAR) (89.6%) vaccines continued to be at or near the national health objective of 90%, although coverage for MMR and HepB vaccines decreased slightly in 2009. The percentage of children who have not received any vaccines remained low (<1%). Parents and primary-care providers continued to ensure that children were vaccinated, in spite of interim recommendations to suspend the booster dose of Haemophilus influenzae type b vaccine (Hib) because of a national shortage, and heightened public awareness of controversies in vaccine safety.
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