COVID-19 Testing Decision Matrix Persons Under Investigation (PUIs) for Testing at IDPH Laboratories RESIDENTIAL CONGREGATE LIVING WITH CLUSTERS (2 OR MORE) OF POSSIBLE* OR CONFIRMED COVID-19 CASES IN A VULNERABLE POPULATION Persons (may include residents or staff) who are part of a cluster of 2 or more possible or confirmed cases in a residential congregate setting that serves more vulnerable populations such as an assisted living facility, group home, homeless shelter, or correctional settings. OR HOSPITALIZED PATIENTS WITH UNEXPLAINED PNEUMONIA Be sure to expeditiously test patients from a residential congregate setting that serves vulnerable populations such as an assisted living facility, group home, homeless shelter, or correctional settings. *Possible COVID-19 case: A possible case of COVID-19 is defined as a person with COVID-19-like illness for whom testing was not performed. COVID-19-like Illness is described as new onset of subjective or measured (≥100.4oF or 38.0oC) fever OR cough OR shortness of breath OR sore throat that cannot be attributed to an underlying or previously recognized condition. Patients who do not meet any of the above criteria for COVID-19 testing by IDPH laboratories should be managed as clinically indicated and providers may determine to proceed with testing at a commercial or hospital laboratory. Interim Guidance, Subject to Change