If a healthcare worker at a clinic in suburban Cook County tests positive for COVID, should this be reported to CCDPH, IDPH or another agency?

Positive test results are reported to the Illinois Department of Public Health (IDPH) and local health departments using a system called I-NEDSS (Illinois’ National Electronic Disease Surveillance System). Contact tracing is then conducted to let contacts know they may have been exposed and should monitor their health for signs and symptoms.