COVID-19 Vaccination Coverage and Intent for Vaccination, Children 6 months through 17 years, United States

Child COVID-19 Vaccination Coverage and Parental Intent for Vaccination

Weekly estimates of COVID-19 vaccination coverage and parental intent for vaccination among children through December 31, 2023, were calculated using data from the National Immunization Survey–Child COVID Module (NIS–CCM). The NIS–CCM was discontinued at the end of 2023 and questions regarding COVID-19 vaccination status and intent were added to the National Immunization Survey–Flu (NIS–Flu).

NIS–CCM and NIS–Flu are national random-digit dial cellular telephone surveys of households with children ages 6 months through 17 years; NIS–Flu is 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.

Weekly comparisons to previous season should take into account differences between seasons in vaccine availability dates. 2023–24 COVID-19 vaccines were first available mid-September 2023, and 2024–25 COVID-19 vaccines were first available at the end of August 2024.

The NIS–Flu data posted on the dashboard below are currently a few days behind the data that are posted on the Respiratory Illnesses Data Channel. This lag is due to the time it takes to review data by geographic and sociodemographic characteristics and summarize the findings.

• Figure 1A. Weekly Cumulative Percentage of Children 6 Months–17 Years Who are Up to Date with the COVID-19 Vaccines by Season^*,†,‡,§. Data Source: National Immunization Survey–Flu.

• Figure 1B. Weekly Parental Intent^± for Vaccination and Cumulative Percentage of Children 6 Months–17 Years Who are Up to Date with COVID-19 Vaccines by Season^*,†,‡,§. Data Source: National Immunization Survey–Flu.

Download Data for Figures 1A & 1B

• Figure 1C. Weekly Cumulative Percentage of Children 6 Months–17 Years Who Are Up to Date with COVID-19 Vaccines and Comparison Between 2023–24 and 2024–25 by Jurisdiction^{*,†,‡,§,^}. Data Source: National Immunization Survey–Flu.

Download Data for Figure 1C

• Figure 1D. Differences in Cumulative Percentage of Children 6 Months–17 Years Who Are Up to Date with COVID-19 Vaccines by Selected Demographics and by Season, United States^*,†,‡,§. Data Source: National Immunization Survey–Flu..

Download Data for Figure 1D

^{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.}

^{‡Up-to-date with the updated 2024–25 COVID-19 vaccine is defined as receipt of at least one vaccination since August 22, 2024, for children ≥5 years; for children <5 years, up-to-date status was defined based on the current recommendations that also take into account number of doses and brand of vaccine. Up-to-date status was determined by survey questions on month and year of most recent COVID-19 vaccine, and for children <5 years, total number of COVID-19 vaccinations received and brand of most recent COVID-19 vaccine. Up-to-date with the updated 2023–24 COVID-19 vaccine is defined as receipt of at least one vaccination since September 14, 2023 for children ≥5 years; for children <5 years, up-to-date status was defined based on the current recommendations that also take into account number of doses and brand of vaccine. Vaccination coverage estimates are based on all interviews through the current week and represent approximately the cumulative percent vaccinated by mid-week. Each week, estimates for prior weeks are recalculated using the additional interviews conducted that week (combined with all previous interviews).}

^{§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.}