JHU Measles Tracking
- Source
- JHU CSSEGISandData Measles Tracking Team
- Update Cadence
- Weekly
- Coverage
- National, state, and county-level
- Official URL
- View source
What It Measures
The JHU Measles Tracking project compiles measles case data from state and local health departments across the United States. It provides county-level case counts, outbreak status, and time series data.
How It Works
The tracking team aggregates publicly reported measles case data from state health department websites, press releases, and surveillance reports. Data is processed into standardized CSV files covering county-level cases, state-level time series, and outbreak information.
What It Tells You
This data provides a detailed view of where measles cases are occurring at the county level, which outbreaks are active, and how case counts are changing over time. It complements CDC national totals by providing granular geographic detail.
Limitations
- Case counts may lag behind real-time reporting by health departments.
- Not all states provide county-level data, so some cases may be reported only at the state level.
- Case definitions and reporting practices vary between states.
- This is a compiled dataset; the primary data comes from individual state and local health departments.