Communicable Diseases

Preventing Spread of Infections in K-12 Schools

Data Reports

Clark County Communicable Disease Reports
2026
- 2026-Quarter One
2025
Wisconsin Weekly Respiratory Reports
Wisconsin Laboratory Surveillance Reports
Respiratory Virus & Hospital Data
Respiratory Illness Data
Emergency Department Visit Data for COVID-19, Influenza, and RSV
Laboratory-Based Respiratory Virus Data

Resources

Measles

COVID-19 Resources

Wisconsin DHS Health Alert Network (HAN)

When an event threatens the health of Wisconsinites, fast, efficient, and reliable communication to those responding to the event can prevent illness and save lives.

Click here for more information.

Outbreaks in Wisconsin

Click here for a list of selected outbreaks, recalls, and investigations with wide impact in Wisconsin.

CDC Health Alert Network (HAN)

CDC's HAN is a strong national program that provides vital health information and the infrastructure to support dissemination at state and local levels.

Click here for more information.

Wisconsin Epi Express

The Wisconsin Epi Express (WEE) is a periodic update on communicable disease issues.

Click here for more information.