Influenza: Wisconsin Data
Weekly influenza case counts are organized by flu season.
The weekly respiratory report retired on May 23, 2025. All information from the weekly respiratory report will be found in the respiratory virus data visualizations for the upcoming respiratory season.
View past reports by choosing a season or see the table listing all reports.
- 2024-25 flu season began reporting on October 5, 2024
- 2023-24 flu season began reporting on October 21,2023
- 2022-23 flu season began reporting October 1, 20223
- 2021-22 flu season began reporting July 3, 2021
- 2020-21 flu season began reporting October 17, 2020
- 2019-20 flu season began reporting October 5, 2019
- 2018-19 flu season began reporting October 13, 2018
For additional influenza data in Wisconsin, visit our webpages for respiratory virus data or influenza vaccine data.
For national data, visit the Centers for Disease Control and Prevention Flu Activity and Surveillance page.
Questions about influenza? Contact us!
Phone: 608-267-9003 | Fax: 608-261-4976
Weekly Respiratory Virus Data
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| Assigned Number | Title | Language | Release Date Sort ascending | File Format | Available to Order |
|---|---|---|---|---|---|
| P-02346 | Week Ending October 5, 2019 | English | 10/2019 | No | |
| P-02346 | Week Ending May 18, 2019 | English | 05/2019 | No | |
| P-02346 | Week Ending May 11, 2019 | English | 05/2019 | No | |
| P-02346 | Week Ending May 4, 2019 | English | 05/2019 | No | |
| P-02346 | Week Ending April 27, 2019 | English | 04/2019 | No | |
| P-02346 | Week Ending April 20, 2019 | English | 04/2019 | No | |
| P-02346 | Week Ending April 13, 2019 | English | 04/2019 | No | |
| P-02346 | Week Ending April 6, 2019 | English | 04/2019 | No | |
| P-02346 | Week Ending March 30, 2019 | English | 03/2019 | No | |
| P-02346 | Week Ending March 23, 2019 | English | 03/2019 | No | |
| P-02346 | Week Ending March 16, 2019 | English | 03/2019 | No | |
| P-02346 | Week Ending March 9, 2019 | English | 03/2019 | No | |
| P-02346 | Week Ending March 2, 2019 | English | 03/2019 | No | |
| P-02346 | Week Ending February 23, 2019 | English | 02/2019 | No | |
| P-02346 | Week Ending February 16, 2019 | English | 02/2019 | No | |
| P-02346 | Week Ending February 9, 2019 | English | 02/2019 | No | |
| P-02346 | Week Ending February 2, 2019 | English | 02/2019 | No | |
| P-02346 | Week Ending January 26, 2019 | English | 01/2019 | No | |
| P-02346 | Week Ending January 19, 2019 | English | 01/2019 | No | |
| P-02346 | Week Ending January 5, 2019 | English | 01/2019 | No | |
| P-02346 | Week Ending December 29, 2018 | English | 12/2018 | No | |
| P-02346 | Week Ending December 22, 2018 | English | 12/2018 | No | |
| P-02346 | Week Ending December 15, 2018 | English | 12/2018 | No | |
| P-02346 | Week Ending December 8, 2018 | English | 12/2018 | No | |
| P-02346 | Week Ending December 1, 2018 | English | 12/2018 | No | |
| P-02346 | Week Ending November 24, 2018 | English | 11/2018 | No | |
| P-02346 | Week Ending November 17, 2018 | English | 11/2018 | No | |
| P-02346 | Week Ending November 10, 2018 | English | 11/2018 | No | |
| P-02346 | Week Ending November 3, 2018 | English | 11/2018 | No | |
| P-02346 | Week Ending October 27, 2018 | English | 10/2018 | No | |
| P-02346 | Week Ending October 20, 2018 | English | 10/2018 | No | |
| P-02346 | Week Ending October 13, 2018 | English | 10/2018 | No |