Eau Claire City-County Health Department. An accredited Health Department by the Public Health Accreditation Board (PHAB) - Advancing public health performance.

Reportable Disease Listing

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The Eau Claire City-County Health Department works to prevent and control communicable disease in our community. The diseases and conditions listed on this page are considered to have significant public health impact.

If you have any questions or concerns about any of the disease listed on this page, please call the Health Department 8:00am - 4:30pm, Monday-Friday at 715-839-4718. After Hours Reporting 715-839-4972 or 911.


CATEGORY I: The following diseases are of urgent public health importance and shall be reported IMMEDIATELY by telephone or fax to the patient’s health department upon identification of a case or suspected case.


Any illness caused by an agent that is foreign, exotic, or unusual to Wisconsin, and that has public health implications.
  • Anthrax
  • Botulism
  • Cholera
  • Diphtheria
  • Foodborne/Waterborne Outbreaks
  • Haemophilus influenza invasive disease
  • Hantavirus Infection
  • Hepatitis A
  • Measles
  • Meningococcal disease
  • Outbreaks, food or waterborne
  • Outbreaks, suspected of other acute or occupationally-related disease
  • Pertussis (whooping cough)
  • Plague
  • Poliovirus infection
  • Rabies (human)
  • Ricin toxin
  • Rubella
  • Severe Acute Respiratory Syndrome (SARS)
  • Smallpox
  • Tuberculosis
  • Vancomycin-intermediate Staphylococcus aureus
  • Vancomycin-resistant Staphylococcus aureus
  • Yellow fever 

The following diseases shall be reported electronically through the Wisconsin Electronic Disease Surveillance System (WEDSS), by mail or fax within 72 hours of the recognition of a case or suspected case.

  • Arboviral disease
  • Babesiosis
  • Blastomycosis
  • Brucellosis
  • Campylobacteriosis
  • Chancroid
  • Chlamydia trachomatis infection
  • Cryptosporidiosis
  • Cyclosporiasis
  • E. coli
  • Ehrlichiosis (Anaplasmosis)
  • Giardiasis
  • Gonorrhea
  • Hemolytic uremic syndrome
  • Hepatitis B
  • Hepatitis C
  • Hepatitis D
  • Hepatitis E
  • Histoplasmosis
  • Influenza A virus, novel subtypes
  • Influenza assoc. pediatric death
  • Kawasaki disease
  • Legionellosis
  • Leprosy (Hansen disease)
  • Leptospirosis
  • Listeriosis
  • Lyme disease
  • Lymphocytic Choriomeningitis Virus infection
  • Malaria
  • Meningitis, bacterial
  • Mumps
  • Mycobacterial disease-non TB
  • Pelvic inflammatory disease
  • Psittacosis
  • Q Fever
  • Rheumatic Fever
  • Rocky Mountain spotted fever
  • Salmonellosis
  • Shigellosis
  • Streptococcal disease- A or B invasive
  • Streptococcus pneumoniae invasive disease
  • Syphilis
  • Tetanus
  • Toxic Shock Syndrome
  • Toxic substance related disease
    • Infant Methemoglobinemia
    • Lead intoxication
    • Other metal or pesticide poising
  • Toxoplasmosis
  • Transmissible spongiform encephalopathy
  • Trichinosis
    • Tularemia
  • Typhoid fever
    • Varicella (chickenpox)
  • Vibriosis
  • Yersiniosis


The following diseases shall be reported to the state within 72 hours of the identification of a case or suspected case. See link below for further details about reporting a Category III disease.


  • Human Immunodeficiency Virus (HIV)
  • Acquired Immune Deficiency Syndrome (AIDS)
  • CD4+ T-lymphocyte count <200/ml, or CD4+ T-Lymphocyte percentage of total lymphocytes <14