Communicable Diseases

Communicable diseases, also known as infectious diseases or transmissible diseases, are illnesses that result from the infection, presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host. Infections may range in severity from asymptomatic (without symptoms) to severe and fatal.

For more information on a specific disease please visit:

Communicable Disease Reporting List

The diseases and conditions reportable in the state of Wisconsin are considered to have significant public health impact, and any confirmed or suspected cases must be reported promptly.

Requirements for the timing of reporting, once the disease or condition is recognized or suspected, vary by disease. General reporting requirements are described in Wisconsin Statute Chapter 252 Communicable Diseases. The specific reporting requirements are described in Chapter DHS 145 Control of Communicable Diseases.

For a list of reportable conditions please follow this link to

Disease Reporting for Health Professionals:

Call (262) 898-4460 to report a communicable disease during work hours. 

For after-hours to report Category I Reportable Diseases, call non-emergency dispatch at (262) 886-2300.


Click here for the most up to date guidance on COVID-19.

For current testing sites, visit DHS COVID-19 Community Testing Sites.

For vaccine information visit RCPH Immunizations.

Wisconsin AIDS/HIV Program

HIV/AIDS should be reported directly to the Wisconsin AIDS/HIV Program. The Wisconsin AIDS/HIV Program is the lead agency in Wisconsin government responsible for coordinating the state’s public health response to the AIDS/HIV epidemic.

Visit this website for more information: