Skip to main content

Measles cases are on the rise globally and here in Illinois the number is increasing as well. Vaccines are 97% effective in preventing this highly contagious disease.  To learn more about this infection and get information on vaccination, go to  Learn how to identify measles and the safe and effective vaccine that can prevent this potentially life-threatening infection for adults and children. 

Infectious Diseases

The mission of the Division of Infectious Diseases is to protect people from infectious diseases through disease surveillance, analysis, immunization, and education.
The Division is organized into the sections of Communicable Diseases, HIV/AIDS, Sexually Transmitted Diseases, and Immunization. Several of these sections work together on Viral Hepatitis initiatives. To learn more about a specific section, you can click on it in the left-hand column.
Infectious Diseases in Illinois are reported through our electronic surveillance system: Illinois National Electronic Disease Surveillance System (I-NEDSS). Health care providers and local health department staff may use this system to enter reportable conditions. To become a reporter of the I-NEDSS system register for a portal account at the Illinois Department of Public Health Web Portal. To access the Web Portal, got to Resources. To learn more about reporting in general, visit Infectious Disease Reporting.
For data and statistics related to Infectious Diseases, go to IQUERY and/or under Resources