This is a Wisconsin disease surveillance category I disease:
Report IMMEDIATELY by TELEPHONE to the patient's local public health department upon identification of a confirmed or suspected case. The local health department shall then notify the state epidemiologist immediately of any confirmed or suspected cases. Submit a case report within 24 hours submit a case report electronically through the Wisconsin Electronic Surveillance System (WEDSS), by mail or fax using an Acute and Communicable Disease case report F-44151 (Word, 166 KB) or by other means.
Information on communicable disease reporting
Wisconsin case reporting and public health follow-up guidelines: Anthrax EpiNet (PDF, 39 KB)