Contact Tracing

Updated January 17, 2022

Illinois Department of Public Health Centralizing COVID-19 Contact Tracing

The Illinois Department of Public Health (IDPH) began a centralized contact tracing system on January 13, 2022. The Illinois Department of Public Health (IDPH) has centralized COVID-19 contact tracing efforts in order to get information about isolation and identifying close contacts to infected individuals as soon as possible during times when cases are surging, and to decrease the burden on local health departments across the state.

All positive cases entered into the State’s data systems associated with a cell phone number will receive an automated text message from IDPH. The initial outgoing text will read:

IDPH COVID: There is important info for you. Call 312-777-1999 or click:

It is essential that individuals respond to this message in order to receive their required work release letters.  Please do not call LaSalle County Health Departments directly for a return letter. Request a letter from the IDPH Surge Center by calling 1-312-777-1999.

Individuals who call the number in the text will be considered as “opting in” for an interview. Public health officials will prioritize case investigations for individuals who are 65 years and older and are at higher risk of severe illness, per Centers for Disease Control and Prevention recommendations. This population will receive an additional text message if the individual does not respond to the initial message. If someone has tested positive and they have not received a call or text message, they can call 312-777-1999.

While most confirmed cases will be traced through the State Contact Tracing Surge Center, local health departments will continue to respond to cases in high-risk settings, including congregate facilities. Local health departments will also be able to see details about cases so they can identify any potential clusters or outbreaks and can request those cases be transferred from the Surge Center for further contact tracing. Additionally, local health departments will continue to have oversight of schools, daycares, and congregate setting, including assistance with mitigation strategies and outbreak management.