Historical Respiratory Virus Surveillance Reports
The Chicago Department of Public Health provides weekly reports that detail the current flu risk, which influenza strains are circulating, and where can you get more information. Beginning in December 2021, CDPH expanded laboratory surveillance to include other respiratory viruses besides influenza; the updated report is now called the Chicago Influenza and Respiratory Virus Surveillance Report.
Chicago Influenza and Respiratory Virus Surveillance Reports
2023-2024 Influenza Season Surveillance Summary
- New: November 1
- October 25
- October 18
- October 11
- October 4
- September 27
- September 20
- September 13
- September 6
- August 30
- August 23
- August 16
- August 9
- August 2
- July 26
- July 19
- July 12
- June 28
- June 21
- June 14
- June 7
- May 31
- May 24
- May 17
- May 10
- May 3
- April 26
- April 19
- April 12
- April 5
- March 29
- March 15
- March 8
- March 1
- February 23
- February 16
- February 9
- February 2
- January 26
- January 19
- January 12
2022-2023 Influenza Season Surveillance Summary
- January 5
- December 29
- December 21
- December 15
- December 8
- December 1
- November 27
- November 17
- November 9
- November 3
- October 27
- October 20
- October 13
- October 6
- September 29
- September 22
- September 15
- September 8
- September 1
- August 25
- August 18
- August 4
- July 28
- July 21
- July 14
- July 7
- June 30
- June 23
- June 16
- June 9
- June 2
- May 26
- May 19
- May 12
- May 5
- April 28
- April 21
- April 14
- April 7
- March 31
- March 24
- March 17
- March 10
- March 3
- Feb 24
- Feb 17
- Feb 10
- Feb 3
- Jan 27
- Jan 13
- Jan 7
- Jan 14
- Jan 21
- Jan 28
- Feb 4
- Feb 11
- Feb 18
- Feb 25
- Mar 4
- Mar 11
- Mar 18
- Mar 25
- Apr 1
- Apr 8
- Apr 15
- Apr 22
- Apr 29
- May 6
- May 13
- May 20
- Jun 3
- Jun 10
- Jun 17
- Jun 24
- July 1
- July 8
- July 15
- July 22
- July 29
- Aug 5
- Aug 12
- Aug 19
- Aug 26
- Sep 2
- Sep 9
- Sep 16
- Sep 23
- Sep 30
- Oct 7
- Oct 14
- Oct 21
- Oct 28
- Nov 4
- Nov 10
- Nov 18
- Nov 25
- Dec 2
- Dec 9
- Dec 16
- Dec 23
- Dec 30
- Jan 6
State and National Flu Information & Resources
Visit www.idph.state.il.us/pandemic_flu/ to get more information about the Flu in Illinois and nationwide. This website provides valuable resources and health information, including important information about seasonal flu and flu prevention as well as hundreds of resources from trusted sources such as the Centers for Disease Control and Prevention, United States Health and Human Services and the World Health Organization.
