Communicable Disease Control | DeKalb County Health Department

Investigates confirmed and suspected cases of reportable diseases by working with healthcare providers, schools, childcare staff and the Illinois Department of Public Health (IDPH). Collection and analysis of data from infected and exposed individuals (surveillance) to identify the cause of diseases to prevent and control their spread from person to person. Also, provides Tuberculosis (TB) testing and treatment, treatment for partners of those diagnosed with a sexually transmitted infection (STI) and HIV Medical Case Management.

12/17/2025