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The Chicago Reporter is tracking Illinois coronavirus case data provided by the Illinois Department of Health, which is updated daily. This data is published on websites run by the Office of the Governor and the Illinois Department of Public Health.
This is a work in progress. County-level figures only contain the number of confirmed cases and deaths, not the number of people tested or number of negative tests. This page will be updated and improved over time and as Illinois state agencies and local governments release data related to the virus.
Scroll to see all counties. También disponible en español.
The state is confirming COVID-19 cases through laboratory results, which includes state laboratories as well as commercial and hospital laboratories that are reporting. But since testing kits remain limited, the number of new cases can only be confirmed to the extent that testing is available.
As testing increases, we do expect to see the number of cases to increase,” Public Information Officer Kim Biggs told The Chicago Reporter on March 26. “Right now, about 85% of the tests that we’ve done have been negative, so only 15% have been positive cases.”
Testing laboratories are required to report results to IDPH, but the state is not required to be notified when testing sites are set up and many do not wish to be identified.
Reported deaths are typically those attributed to individuals who had tested positive for COVID-19 prior to death, however there have been a few who were tested posthumously. It is possible there could be deaths of individuals with COVID-19 who were not tested, according to IDPH.
We are making this data available in an Observable notebook for analysis and easier access to the state data feed. Want to feature this information on your website? You can embed this map and chart, in English or Spanish, for free! The figures will be updated automatically as soon as the state provides data. See terms and instructions here.
Asraa Mustufa contributed reporting. Mapping services generously provided by Mapbox.