Blue-Green Algae: Cyanobacterial Harmful Agal Blooms Tips and Resources for Health Professionals

Doctor holding clipboard with papers discussing medical form with patient

This page includes resources for clinical and public health professionals.

The resources offer information about cyanobacterial harmful agal blooms (cyanoHABs) and related illnesses.

CyanoHAB resources for public health professionals

CyanoHAB resources for health care professionals

CyanoHAB resources for veterinary care professionals

Report an illness

Blue-green algae (cyanobacteria) and cyanotoxin poisoning is a reportable condition in Wisconsin. To report any suspected human cases of cyanobacteria and cyanotoxin poisoning, clinicians and public health officials should either:

Report electronically through the Wisconsin Electronic Disease Surveillance System

How to report a suspect case of blue-Green Algae (cyanobacteria) poisoning

Health care providers should report any suspected human cases of cyanobacteria and cyanotoxin poisoning electronically through WEDSS, or by mailing, or faxing a completed Acute and Communicable Disease Case Report, F-44151 (PDF) to the address on the form.

For help with reporting, call 608-266-1120 or email dhshabs@dhs.wisconsin.gov.

Last revised March 3, 2025