Communicable Disease Division


The Communicable Disease Division (CDD) provides reference and specialized testing services in support of public health and ensures statewide access to laboratory expertise and capabilities in the disciplines of bacteriology, mycobacteriology, virology, parasitology, molecular microbiology, and serology. The CDD also coordinates a network of clinical laboratories throughout Wisconsin for emergency and public health response, as well as facilitates planning among clinical laboratories, local public health laboratories and other state-level laboratories.


CDD News and Hot Topics


UPDATE 05/04/24: A new Measles IgM assay has been validated and testing is once again available at the WSLH. We will no longer send specimens to an outside reference lab beginning 05/04/24. There is no change to ordering, reporting, or billing compared to our previous test.



A to Z listing of Diseases


The link below connects to the Centers for Disease Control and Prevention (CDC) alphabetical directory of information regarding infectious agents and diseases.

CDC website


Note about Food Testing

The WSLH does NOT perform food testing. If you have a concern or question about food safety, please contact the Wisconsin Department of Agriculture, Trade and Consumer Protection Division of Food Safety—