At a glance
Child Flu Vaccination Coverage
Weekly Influenza vaccination coverage and parental intent for vaccination among children is calculated using data from the National Immunization Survey–Flu (NIS–Flu). NIS–Flu is a national random-digit-dialed cellular telephone survey of households with children ages 6 months–17 years conducted during October-June. The respondent to a NIS–Flu survey is a parent or guardian who said they were knowledgeable about the child's vaccination history. All estimates are based upon parental report of receipt of vaccination and month of that vaccination.
- Figure 2A. Weekly Cumulative Influenza Vaccination Coverage*,†,‡, by Flu Season and Selected Demographics, Children 6 Months–17 Years, United States. Data Source: National Immunization Survey–Flu.
- Figure 2B. Cumulative Influenza Vaccination Coverage*,†,‡, by Week of vaccine receipt, Flu Season, and Race and Ethnicity, Children 6 Months–17 Years, United States. Data Source: National Immunization Survey–Flu.
Download Data for Figures 2A & 2B
- Figure 2C. Weekly Influenza Vaccination Status and Intent for Vaccination§, Overall, by Selected Demographics, and Jurisdiction, Children 6 Months–17 Years, 2023–24, United States*,†,‡. Data Source: National Immunization Survey–Flu.
- Figure 2D. Weekly Cumulative Influenza Vaccination Coverage*,†,‡ and Comparison Between 2023–24 and 2024–25± by Jurisdiction, Children 6 Months–17 Years, United States. Data Source: National Immunization Survey–Flu.
- Figure 2E. Difference in Cumulative Influenza Vaccination Coverage*,†,‡ by Selected Demographics and by Season, 2024–25, and 2024–25 Compared with 2023-24, Children 6 Months–17 Years, United States. Data Source: National Immunization Survey–Flu.
Note: Confidence Intervals (CI) describe the level of uncertainty around an estimate because a sample was taken. 95% CIs represent the range of values that would result if the data collection had been repeated many times. For a 95% confidence interval, if the sampling method is repeated many times, the true value would fall within this interval at least 95% of the time. Wider CIs reflect larger random error in estimates resulting from survey sampling.
Estimates from the NIS may differ from estimates based on other data sources, and in addition to random error associated with taking a sample, are subject to errors resulting from incomplete sample frame (exclusion of households without cell phones), selection bias (survey respondents may be more likely to be vaccinated than non-respondents), and errors in self or parental reported vaccination status. Estimates are weighted to selected sociodemographic characteristics of the U.S. population to reduce possible bias from incomplete sample frame and selection bias.
*National estimates include 50 states and Washington D.C. The Office of Intergovernmental and External Affairs hosts 10 Regional Offices that directly serve state and local organizations; information about Regions and which states are included in each region is available.
†Week ending dates for prior seasons are aligned with the current season's week ending dates. Sample size is insufficient to provide estimates by demographics within jurisdictions.
‡Cumulative vaccination coverage estimates are suppressed when the cumulative sample size is <30 or current week sample size is <5. Vaccination intent estimates for a given week are suppressed when the sample size for that week is <30.
§Estimates for parental vaccination intent are based on interviews conducted during that week and are adjusted to the cumulative vaccination coverage estimate for that week.
±Interpretation of the difference between current minus previous season is based on the 95% confidence interval (CI) of the difference. The interpretation is "Similar to last season" if the 95% CI for difference overlaps with zero; "Lower than last season" if the entire 95% CI for the difference is below zero; and "Higher than last season" if the entire 95% CI for the difference is above zero.