Data based on available statistics from the Illinois Department of Public Health.
Note: For COVID-19, the herd-immunity threshold is estimated to be between 60 and 90 percent. Our analysis considers herd immunity reached at 75% of the population fully vaccinated based on estimates by Dr. Anthony Fauci.
Illinois Health Regions
Note: Health region totals were calculated based on data from Illinois counties. Illinois' regional hospitalization data may not be from previous day but is based on the most recent data available. Data for Chicago is currently unavailable.
Total Cases by County
Total Cases by Zip Code
Chicago Area Vaccinations
Data based on available statistics from the Indiana Department of Health.
Indiana Health Regions
Design and development by Amy O'Kruk/NBC