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Health Alert Network

When an event threatens the health of Wisconsinites, fast, efficient, and reliable communication to those responding can prevent illness and save lives.

The Wisconsin Health Alert Network (HAN) is the state’s public health messaging and alerting system for health care providers, public health officials, and first responders. It provides critical information about emerging public health events, treatment and prevention guidelines, and other relevant public health information. This webpage hosts HAN messages that have been sent in response to public health events impacting Wisconsin.

Review news releases issued by the Wisconsin Department of Health Services.

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Health and residential care providers, local and tribal health department staff, and other emergency workers should sign up for the Wisconsin Health Alert Network to receive notifications on public health advisories impacting Wisconsin.

DHS issues public health advisory

Department of Health Services Issues Public Health Advisory to Warn of the Risks of Death from Drugs Laced with Fentanyl

2026 Communications

Health alerts issued during 2026
Release dateOrganizationTitle
8/11/2026DHSWisconsin DHS Health Alert #71: Two Locally-Acquired Measles Cases Identified in Southwest Wisconsin
3/6/2026DHSWisconsin DHS Health Alert #70: Trichophyton mentagrophytes Genotype VII (TMVII): Clinical Awareness and Regional Update
2/4/2026DHSWisconsin DHS Health Alert #69: Additional Case of Measles Confirmed in Wisconsin
1/27/2026DHSWisconsin DHS Health Alert #68: First Case of Measles Confirmed in Wisconsin in 2026

Previous communications

Health alerts issued during 2025
Release DateOrganizationTitle
8/11/2025DHSWisconsin DHS Health Alert #67: Shortages of Bicillin® L-A (Penicillin G Benzathine Injectable Suspension)
8/4/2025DHSWisconsin DHS Health Alert #66: Nine Cases of Measles Confirmed in Wisconsin
7/17/2025DHSWisconsin DHS Health Alert #65: Bicillin® L-A (Penicillin G Benzathine Injectable Suspension) Recall
3/14/2025DHSWisconsin DHS Health Alert #64: First Imported Case of Oropouche Virus Disease in a Wisconsin Resident

Health alerts issued during 2024
Release DateOrganizationTitle
11/22/2024DHSWisconsin DHS Health Alert #63: Potential Hepatitis A Exposure in Wisconsin
10/18/2024DHSWisconsin DHS Health Alert #62: Increase in Mycoplasma Pneumoniae Cases in Wisconsin
9/25/2024DHSWisconsin DHS Health Alert #61: Pertussis Cases in Wisconsin
9/18/2024DHSWisconsin DHS Health Alert #60: Ciprofloxacin-Resistant Meningococcal Disease Cases in Wisconsin
2/13/2024DHSWisconsin DHS Health Alert #59: Adverse Health Effects Linked to Neptune’s Fix and Other Products with Tianeptine
2/9/2024DHSWisconsin DHS Health Alert #58: Increasing Cases of Multidrug-Resistant Organisms in Wisconsin

Health alerts issued during 2023
Release DateOrganizationTitle
11/30/2023DHSWisconsin DHS Health Alert #57: Important Recommendations for Preventing RSV Disease in Infants During the 2023-2024 Respiratory Virus Season
7/19/2023DHSWisconsin DHS Health Alert #56: Current Drug Shortages Affecting Treatment of Syphilis and Gonorrhea
2/10/2023DHSWisconsin DHS Health Alert #55: National outbreak of extensively drug-resistant Pseudomonas aeruginosa associated with artificial tears
2/7/2023DHSWisconsin DHS Health Alert #54: Increased reports of Toxic Shock Syndrome associated with super absorbency tampon use
1/24/2023DHSUpdate—Health Alert #40: Abbot Formula Recall and Shortage: Update for Health Care Providers serving WIC participants

Health alerts issued during 2022
Release DateOrganizationTitle
12/2/2022DHSWisconsin DHS Health Alert #53: Interim Guidance for Clinicians to Prioritize Antiviral Treatment of Influenza in the Setting of Reduced Availability of Oseltamivir
12/1/2022DHSWisconsin DHS Health Alert #52: Bebtelovimab is no longer authorized for COVID-19 Treatment
11/16/2022DHSWisconsin DHS Health Alert #51: Increased Circulation of Multiple Respiratory Viruses Among Children and Adults in Wisconsin
11/8/2022DHSWisconsin DHS Health Alert #50: Notice to all Wisconsin Dental Health Care Personnel (DHCP)
10/10/2022DHSWisconsin DHS Health Alert #49: Severe Respiratory Illness and Acute Flaccid Myelitis (AFM) Surveillance in Wisconsin
9/1/2022DHSWisconsin DHS Health Alert #48: Expanded Monkeypox Vaccine Eligibility Criteria
7/19/2022DHSWisconsin DHS Health Alert #47: Expanded Monkeypox Testing Capacity
7/1/2022DHSWisconsin DHS Health Alert #46: Monkeypox Detected in Wisconsin Resident
6/3/2022DHSWisconsin DHS Health Alert #45: Updated Recommendations for Adenovirus Testing and Reporting of Children with Acute Hepatitis of Unknown Etiology
6/2/2022DHSWisconsin DHS Health Alert #44: Monkeypox: Recommendations for Detection and Reporting
5/3/2022DHSWisconsin DHS Health Alert #43: Wisconsin has Adequate Supply of Oral and IV Antiviral Therapies for COVID-19 to Offer Treatment to Patients at Risk for Severe Disease
4/27/2022DHSWisconsin DHS Health Alert #42: Recommendations for Adenovirus Testing and Reporting of Children with Acute Hepatitis of Unknown Etiology
3/30/2022DHSWisconsin DHS Health Alert #41: Highly Pathogenic Avian Influenza (HPAI) H5N1 Confirmed in Wisconsin Poultry
2/25/2022DHSUpdate—Health Alert #40: Similac, Alimentum, and EleCare Formula Recall
2/18/2022DHSHealth Alert #40: Similac, Alimentum, and EleCare Formula Recall
2/18/2022DHSHealth Alert #39: Update on Multisystem Inflammatory Syndrome in Children (MIS-C)
1/05/2022DHSHealth Alert #38: Molnupiravir and Paxlovid are now available in limited supply for Wisconsin

Health alerts issued during 2021
Release DateOrganizationTitle
12/22/2021DHSHealth Alert #37: Important Changes to COVID-19 Monoclonal Antibody Ordering and Prescribing
12/17/2021DHSHealth Alert #36: Increased COVID-19 Deaths in Unvaccinated Pregnant or Recently Pregnant People in Wisconsin: Providers Should Intensify Vaccine Education and Promotion Efforts
12/1/2021DHSHealth Alert #35: Increased Influenza Identified in Midwest Universities
10/8/2021DHSHealth Alert #34: Measles Outbreak Associated with Operation Allies Welcome at Fort McCoy
7/13/2021DHSHealth Alert #33: Recall of LeadCare® Blood Lead Test Kits
6/28/2021DHSHealth Alert #32: Increased circulation of Non-COVID-19 respiratory viruses among Children and Adults in Wisconsin
6/18/2021DHSHealth Alert #31: Adult and Congenital Syphilis Cases Are Spiking in Milwaukee: Providers Should Prioritize Syphilis Testing in All Medical Settings
6/1/2021DHSHealth Alert #30: Myocarditis and Pericarditis Potentially Associated with mRNA-based COVID-19 Vaccines: Clinical Considerations and Information for Providers
3/18/2021DHSHealth Alert #29: Call for Cases: Multisystem Inflammatory Syndrome in Adults (MIS-A)
2/18/2021DHSHealth Alert #28: Guidance for Reuse of N95 Respirators during the COVID-19 Pandemic
2/12/2021DHSHealth Alert #27: Wisconsin has adopted the updated CDC quarantine guidance for fully vaccinated people who are exposed to COVID-19
2/11/2021DHSHealth Alert #26: Guidance for Evaluation and Management of Systemic Signs and Symptoms Associated with COVID-19 Vaccine
1/4/2021DHSHealth Alert #25: Surveillance for New Genetic Variants of SARS-CoV-2: Information for Clinicians

Health alerts issued during 2020
Release DateOrganizationTitle
12/18/2020DHSHealth Alert #24: Death certificates must be signed within 48 hours for deaths caused by COVID-19
12/4/2020DHSHealth Alert #23: Options for Reducing the Duration of Quarantine for Individuals Exposed to COVID-19
11/30/2020DHSHealth Alert #22: Revised guidance for the use of rapid, point of care tests in supporting return to work for quarantined healthcare personnel
11/13/2020DHSHealth Alert #21: Bamlanivimab is now available in limited supply for Wisconsin hospitals
11/2/2020DHSHealth Alert #20: Resources for Health Care Providers related to COVID-19 Prevention and Outbreak Response
10/15/2020DHSHealth Alert #19: Updated Recommendations from the US COVID-19 Treatment Guidelines Panel
10/12/2020DHSHealth Alert #18: Resources for Health Departments to Support Quarantine and Isolation Requirements: Return to Work for Health Care Personnel (Supplemental: Figure 1 and Figure 2)
9/24/2020DHSHealth Alert #17: Important Considerations for Use of COVID-19 Antigen Tests
9/10/2020DHSHealth Alert #16: Quarantine of Wisconsin Residents Exposed to COVID-19 is an Essential Prevention Strategy
8/27/2020DHSHealth Alert #15: Wisconsin DHS Continues to Recommend Testing for Individuals with Recent Close Contact with COVID-19
8/6/2020DHSHealth Alert #14: Wisconsin Department of Health Services Considerations for Use of Assays Currently Available for COVID-19 Testing
7/1/2020DHSHealth Alert #13: Wisconsin Department of Health Services Recommendations for COVID-19 Testing
5/26/2020DHSHealth Alert #12: CDC Investigating Possible Cases of COVID-19 Re-infection: Request for Information
5/22/2020DHSHealth Alert #11: Access to Remdesivir under Emergency Use Authorization for Wisconsin Hospitals
5/19/2020DHSHealth Alert #10: Multi-System Inflammatory Syndrome in Children (MIS-C) Potentially Associated with COVID-19: Call for Cases
5/18/2020DHSHealth Alert #9: Required data collection for COVID-19 disease testing; new guidelines for COVID-19 testing at WI public health laboratories
5/8/2020DHSHealth Alert #8: Updates: Evolving testing priorities for asymptomatic people; new CDC recommendations for discontinuation of isolation
5/1/2020DHSHealth Alert #7: Antibody Testing for SARS-CoV-2 in Wisconsin: Recommendations and Reporting Requirements
4/22/2020DHSHealth Alert #6: New website enables health care providers to request COVID-19 lab testing supplies
4/16/2020DHSHealth Alert #5: DHS Now Recommends Health Care Providers Test All Patients with Acute Respiratory Illness for COVID-19
4/7/2020DHSHealth Alert #4: New Reporting Requirements and Revised Testing Priorities
3/28/2020CDCSevere Illness Associated with Using Non-Pharmaceutical Chloroquine Phosphate to Prevent and Treat Coronavirus Disease 2019 (COVID-19)
3/27/2020DHSHealth Alert #3: Evolving Priorities for COVID-19 Testing in Health Care, Long-Term Care, and Other Settings
3/20/2020DHSHealth Alert #2: Recommendations for Active Symptom Monitoring for Employees in Health Care Settings where Community Transmission of COVID-19 is Occurring
3/17/2020DHSHealth Alert #1: Activation of the Health Alert Network for Urgent Updates about COVID-19 from the Wisconsin Department of Health Services
3/15/2020CDCInformation and Guidance about Global Travel on Cruise Ships, Including River Cruises, due to Coronavirus Disease 2019 (COVID-19)
3/8/2020CDCUpdated Guidance on Evaluating and Testing Persons for Coronavirus Disease 2019 (COVID-19)
2/3/2020CDCCommunication Resources for Travelers on Coronavirus (2019-nCoV)

Glossary

 
Last revised August 12, 2026