This repository contains county-level measles-mumps-rubella (MMR) vaccination rate data for the United States, spanning school years 2017–2018 through 2024–2025. The dataset underlies and extends the analysis published in our JAMA article.
| File / Folder | Description |
|---|---|
mmr_data_sources_v2.csv |
Primary dataset containing county-level 2-dose MMR vaccination rates across all available states and school years. |
mmr_data_us_counties_v2.csv |
Data dictionary describing all fields in mmr_data_sources_v2.csv, state-specific data sources and relevant notes. |
mmr_data_archived/ |
Original dataset used to support the JAMA article, preserved for reproducibility. |
We recommend using the latest versions of the files (
*_v2) for the most current and complete data.
The mmr_data_archived/ folder is provided solely for reproducibility of the published JAMA analyses and is no longer actively maintained.
Trends in County-Level MMR Vaccination Coverage in Children in the United States
Authors: Ensheng Dong; Samee Saiyed; Andreas Nearchou; Yamato Okura; Lauren M. Gardner
Published on JAMA, June 2, 2025. doi:10.1001/jama.2025.8952