The COVID_RD19_Vaccination_curves file contains vaccination coverage information for round 19.
Historical coverage is based on the
Adult National Immunization Survey and
Children National Immunization Survey
for the period Sep 2024 to March 2025. Estimates have been extrapolated
and smoothed to provide weekly data. This generates the data corresponding
to the "Scenario == Historic coverage" observations. THe "Cum.Coverage.Percent"
column contains percent coverage data in percent, meaning 0.4 represents
0.4 %, or in another example, 40 represents 40 %.
For Scenarios B & D, which represent the same timing of vaccination in 2025-26 as in 2024-2025 we shift the historic coverage estimates by 365 days For Scenarios C & F, which represent 1.5 month earlier timing of vaccination in 2025-26 as in 2024-2025, we shift the coverage estimates obtained for Scenarios B & D by 7 weeks earlier.
Note Scenario A data are not provided, it should be assumed that vaccine coverage is 0% in all age and risk groups in the 2025-26 season
The data is available at state and national level, for multiple age groups (6mo-17, 18-49, 50-64, 65+) and risk group (high-risk, low-risk, overall). The data are expressed by epiweek (week starting Sunday) and scenario.
The Weekly Parental Intent for Vaccination and Cumulative Percentage of Children 6 Months -17 Years Who are Up to date with the COVID-19 Vaccines by Season and the COVID-19 Vaccination Coverage, Overall and by Selected Demographics and Jurisdiction, Among Adults 18 Years and Older, by Season is also downloaded weekly and stored in the vax_cov folder in CSV files with the download date added in the name of the files. Past files are stored in an archive folder.
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). (https://www.cdc.gov/nis/about/index.html).
Weekly estimates of COVID-19 vaccination coverage and intent for vaccination among adults are calculated using data from the National Immunization Surveys (NIS)-Fall Respiratory Virus Module (NIS-FRVM) (https://www.cdc.gov/nis/about/index.html).