Disease Reporting

The following diseases are of urgent public health importance and shall be reported IMMEDIATELY by telephone to the patient's local health officer, or to the local health officer's designee, upon identification of a case or suspected case. In addition to the immediate report, within 24 hours, complete and fax, mail, or submit a case report electronically through the Wisconsin Electronic Disease Surveillance System (WEDSS), or by other means. Public health intervention is expected as indicated. See Wis. Admin Code. § DHS 145.04(3)(a) and Wis. Stat. § 252.05.

Notes key:

1. Infectious disease or other condition designated as notifiable at the national level.
2. Required Wisconsin or CDC follow-up form completed by public health agency.
3. High-risk assessment by local health department is needed to determine if patient or member of patient's household is employed in food handling, daycare or health care.
4. Source investigation by local or state health department is needed.
5. Immediate treatment is recommended, i.e., antibiotic or biologic for the patient or contact or both.
6. Coordination between local and state health departments is recommended for follow-up.
7. Disease declared reportable by State Epidemiologist memo.

The following diseases shall be reported to the patient's local health officer, or the local health officer's designee, either electronically through the Wisconsin Electronic Disease Surveillance System (WEDSS), by mail or fax using an Acute and Communicable Disease Case Report, F-44151, or by other means within 72 hours upon recognition of a case or suspected case. Public health intervention is expected as indicated. See Wis. Admin Code. § DHS 145.04(3)(b) and Wis. Stat. § 252.05.

The sexually transmitted diseases shall be reported to the local health officer within 72 hours on a Sexually Transmitted Diseases Laboratory and Morbidity Epidemiologic Case Report, F-44243 (Word fillable) or by entering the data into the WEDSS or by other means within 72 hours of the identification of a case or suspected case. Public health intervention is expected as indicated. See Wis. Admin Code § DHS 145.15 and Wis. Stat. § 252.11(7)(b).

Category II Diseases

Category II Disease	Notes
Anaplasmosis	1, 2, 5
Arboviral disease including, but not limited to, disease caused by California serogroup, Chikungunya, Dengue, Eastern Equine Encephalitis, Powassan, St. Louis Encephalitis, West Nile, Western Equine Encephalitis, and Zika viruses	1, 2, 4
Babesiosis	1 ,2, 4, 5
Blastomycosis	2
Borreliosis other than Lyme disease which is reportable as a distinct disease	2, 4, 6
Brucellosis	1, 2, 4
Campylobacteriosis (Campylobacter infection)	1, 2, 3, 4
Candida auris clinical illness, colonization	1, 2, 6, 7
Carbapenemase-producing carbapenem-resistant Acinetobacter baumannii (CP-CRAB)	2, 6, 7
Carbapenemase-producing carbapenem-resistant Pseudomonas aeruginosa (CP-CRPA)	2, 6, 7
Carbapenemase-producing carbapenem-resistant Enterobacterales (CP-CRE) As of April 25, 2022, this is a Category II disease	1, 2, 6, 7
Chancroid (Haemophilus ducreyi)	1, 2
Chlamydia trachomatis infection	1, 2, 4, 5
Coccidioidomycosis (Valley Fever)	1, 2, 4
Cryptosporidiosis (Cryptosporidium infection)	1, 2, 3, 4
Cyclosporiasis (Cyclospora infection)	1, 2
Ehrlichiosis	1, 2, 5
Environmental and occupational lung diseases:    Asbestosis    Silicosis    Chemical pneumonitis    Occupational lung diseases caused by bio-dusts and bio-aerosols	6 1, 6 6 6
E. coli infection caused by Shiga toxin-producing E. coli (STEC)	1, 2, 3, 4
E. coli infection caused by enteropathogenic (EPEC), enteroinvasive (EIEC), or enterotoxigenic E. coli (ETEC)	2, 3, 4
Free-living amebae infection including Acanthamoeba disease (including keratitis) and Balamuthia mandrillaris disease	2, 4
Giardiasis	1, 2, 3, 4
Gonorrhea (Neisseria gonorrhoeae)	1, 2, 4, 5
Hemolytic uremic syndrome	1, 2, 3, 4
Hepatitis B	1, 2, 3, 4, 5
Hepatitis C	1, 2
Hepatitis D	2, 3, 4
Hepatitis E
Histoplasmosis	2
Influenza-associated hospitalization	2
Influenza-associated pediatric death	1, 2, 4
Influenza A virus infection, novel subtypes	1, 2
Kawasaki disease	2
Latent Tuberculosis infection (LTBI)	2, 5
Legionellosis	1, 2, 4, 5
Leprosy (Hansen's disease)	1, 2, 3, 4, 5
Leptospirosis	1, 2, 4
Listeriosis	1, 2, 4
Lyme disease	1, 2
Lymphocytic choriomeningitis virus (LCMV) infection	4
Malaria (Plasmodium infection)	1, 2, 4, 5
Meningitis, bacterial (other than Haemophilus influenzae, meningococcal or streptococcal, which are reportable as distinct diseases)	2
Mumps	1, 2, 4, 5
Mycobacterial disease (nontuberculous)
Pelvic inflammatory disease	2
Psittacosis	1, 2, 4
Q Fever (Coxiella burnetii)	1, 2
Rheumatic fever newly diagnosed and meeting the Jones criteria	5
Rickettsiosis other than spotted fever rickettsiosis, which is reportable as a distinct disease	2, 4, 6
Salmonellosis	1, 2, 3, 4
Shigellosis (Shigella infection)	1, 2, 3, 4
Spotted Fever Rickettsiosis including Rocky Mountain spotted fever	1, 2, 4, 5
Streptococcal disease All invasive disease caused by Groups A and B Streptococci
Streptococcus pneumoniae invasive disease invasive pneumococcal	1
Syphilis (Treponema pallidum)	1, 2, 4, 5, 6
Tetanus	1, 2, 5
Toxic shock syndrome	1, 2
Toxic substance related diseases:   Blue-green algae (Cyanobacteria) and Cyanotoxin poisoning   Carbon monoxide poisoning   Infant methemoglobinemia    Lead (Pb) poisoning in children and adults    Metal poisonings other than lead (Pb)    Pesticide poisonings	2, 4, 6 1, 6 6 1, 6 6 1, 6
Toxoplasmosis
Transmissible spongiform encephalopathy (Creutzfeldt-Jakob Disease (CJD), human TSE)
Trichinosis	1, 2, 4
Tularemia (Francisella tularensis)	1, 2, 4, 5
Typhoid fever (Salmonella Typhi)	1, 2, 3, 4
Varicella (chickenpox)	1, 3, 5
Vibriosis (non-cholera Vibrio infection)	1, 2, 3, 4
Yersiniosis	2, 3, 4
Zika virus infection	1, 2

Notes key:

1. Infectious disease or other condition designated as notifiable at the national level.
2. Required Wisconsin or CDC follow-up form completed by public health agency.
3. High-risk assessment by local health department is needed to determine if patient or member of patient's household is employed in food handling, daycare or health care.
4. Source investigation by local or state health department is needed.
5. Immediate treatment is recommended, i.e., antibiotic or biologic for the patient or contact or both.
6. Coordination between local and state health departments is recommended for follow-up.
7. Disease declared reportable by State Epidemiologist memo.

* Effective November 29, 2010, influenza-associated hospitalizations are reportable in Wisconsin within 72 hours of identification to local public health agencies.

The following disease shall be reported to the state epidemiologist on a Wisconsin HIV Infection and AIDS Case Report Form, F-44338 or by other means within 72 hours after identification of a known or suspected case. Additionally, the following laboratory results shall be reported on all persons newly or previously diagnosed with HIV infection each time the test is conducted: all CD4+ test results (CD4+ T-lymphocyte counts and percentages), both detectable and undetectable HIV viral load results, HIV genotypic results and all components of the HIV laboratory diagnostic testing algorithm when the initial screening test is reactive. See Wis. Stat. § 252.15(7)(b) and Wis. Admin. Code § DHS 145.04(3)(b)

Case reporting methods and contact information

• Send the case report form in an envelope marked "Confidential" to:
     Scott Stokes
     Wisconsin Bureau of Communicable Diseases
     1 W. Wilson St., Room 265
     Madison, WI 53703

• To obtain case reporting forms, contact the HIV Program, DHSHIVsurveillance@dhs.wisconsin.gov 

Notes key:

1. Infectious disease or other condition designated as notifiable at the national level.
2. Required Wisconsin or CDC follow-up form completed by public health agency.
3. High-risk assessment by local health department is needed to determine if patient or member of patient's household is employed in food handling, daycare or health care.
4. Source investigation by local or state health department is needed.
5. Immediate treatment is recommended, i.e., antibiotic or biologic for the patient or contact or both.
6. Coordination between local and state health departments is recommended for follow-up.

Listing of Wisconsin Local Health Officers

Register to report electronically through WEDSS
(Note: 75% of disease reports are now received through WEDSS)

Case Reporting and Investigation Protocols (EpiNet) can be found by clicking on the name of each individual disease.

Bureau of Communicable Diseases
Phone: 608-267-9003

Bureau of Environmental and Occupational Health
Phone: 608-266-1120

Secure Fax Numbers:

HIV Program
608-266-1288

BEOH
608-267-4853

Epidemiology Program
608-261-4976

Immunization Program
608-267-9493

STD Program
608-261-9301

TB Program
608-266-0049

Copies may be mailed to:

Wisconsin State Epidemiologist (Communicable Diseases)
Bureau of Communicable Diseases
Specify Disease or Program
1 West Wilson St., Room 272
Madison, WI 53703

or

Wisconsin State Epidemiologist (Environmental and Occupational Health)
BEOH
1 West Wilson St., Room 150
Madison, WI 53703

​​Frequently used paper report forms:
Acute and Communicable Disease Case Report form, F-44151
STD: F-44243
HIV: F-44338
LTBI: F-02265

Additional resources

Reportable Communicable Disease Conditions in Wisconsin: P-03305