From the Wisconsin Healthcare-Associated Infections Prevention Program: Being Proactive in Planning for and Preventing Respiratory and Gastrointestinal Illness Outbreaks
DHS Encourages Long-Term Care and Other Health Care Facilities to Be Proactive in Planning For and Preventing Outbreaks
As increases in viral illness activity are often observed in the winter months, the Wisconsin Healthcare-Associated Infections (HAI) Prevention Program encourages health care facilities, including skilled nursing and assisted living facilities, to be proactive in planning for and preventing acute respiratory illness (ARI) and gastrointestinal illness outbreaks in their facilities.
ARI and gastrointestinal illness outbreaks can arise and spread quickly, especially in long-term care facilities (LTCFs). The following are steps all health care facilities can take to keep patients, residents, and staff safe and healthy.
- Increase disease surveillance. Early identification of symptoms in patients, residents, staff, and visitors allow facilities to take appropriate actions in a timely manner and limit the spread of disease. The DHS Infection Surveillance Log for Long-Term Care Facilities (Excel) may be used to help LTCF infection preventionists establish infection surveillance logs for the facility.
- Implement proper precautions. Patients and residents who are experiencing symptoms should promptly be placed on transmission-based precautions while the infection is identified or ruled out.
- Recommended precautions vary depending on the type of suspected or confirmed infectious agent. However, facilities should use the most protective level of precautions (this includes gown, gloves, fit-tested N95, and eye protection for ARI outbreaks, for example) when the cause of the outbreak is unknown. When the cause(s) of an outbreak is determined, precautions taken may be adjusted based on confirmed diagnosis. The DHS Transmission-Based Precautions Reference Guide may be referenced to help determine appropriate precautions.
- LTCF residents placed in transmission-based precautions should be temporarily restricted to their room and excluded from participation in group activities until precautions are discontinued.
- Manage personal protective equipment (PPE) supplies proactively. Facilities should have a sufficient quantity of PPE on hand (including gowns, gloves, eye protection, masks, and N95 respirators) at all times to safely respond to an outbreak. Facilities should not rely on the local or Tribal health department (LTHD) or other local health care facilities to provide PPE if the LTCF is short on supply. Understanding your facility’s PPE burn rate, or the rate at which your facility uses PPE, can be helpful in ensuring you have enough PPE on hand.
- Stock up on other supplies. Facilities are encouraged to have adequate supplies of other products that may be needed during an outbreak available as well, including dedicated patient and resident equipment, cleaning and disinfection products that are effective for the types of infectious agents circulating, hand hygiene supplies, and enough accessible trash cans to manage disposal of additional PPE.
- Perform testing as indicated. Facilities should have adequate testing supplies on hand and protocols in place. Early testing is important to identify the cause of the outbreak and provide recommended therapeutics if appropriate.
- Facilities should test staff, patients, and residents experiencing respiratory symptoms for COVID-19. If test results are negative for COVID-19, consider additional testing for other respiratory viruses with an ARI panel. Wisconsin LTCFs can contact their LTHD for approval to send specimens to the Wisconsin State Laboratory of Hygiene (WSLH) for testing free of charge. Federal and state programs to provide COVID-19 testing supplies to health care facilities are no longer available.
- Fee-exempt stool testing through the WSLH may be available to LTCFs with outbreaks of five or more residents and staff experiencing symptoms consistent with gastrointestinal illness. LTCFs are encouraged to work with their LTHD if outbreaks of any kind are suspected and to facilitate testing.
- Report confirmed or suspected outbreaks to public health. In Wisconsin, confirmed or suspected outbreaks of any disease in health care facilities, including LTCFs, are a Category I Disease, meaning they shall be reported immediately by telephone to the patient’s local health officer, or to the local health officer’s designee, upon identification.
- A suspected ARI outbreak in LTCFs and other health care settings is defined as three or more patients, residents, and/or staff from the same unit with illness onsets within 72 hours of each other and who have pneumonia, acute respiratory illness, or laboratory-confirmed viral or bacterial infection (including influenza and COVID-19).
- A suspected acute gastroenteritis (AGE) outbreak in LTCFs and other health care settings is defined as three or more patients, residents, and/or staff from the same unit with illness onsets within 72 hours of each other who have vomiting and/or diarrhea.
- Follow facility employee health policies. Symptomatic staff should be excluded from work. Ensure that staff who are not directly employed by the health care facility, but provide services, are also aware of facility employee health policies.
- Wisconsin specific guidance for staff exclusion and return to work following ARI can be found in BCD memo 2025-04. Facilities may also choose to continue to follow current CDC (Centers for Disease Control and Prevention) guidance.
- Staff with symptoms of gastrointestinal illness, such as nausea, vomiting, abdominal pain, and diarrhea should be excluded from work until they are asymptomatic and free of diarrhea and vomiting for 48 hours. Any food service employee experiencing symptoms of acute gastrointestinal illness resembling norovirus should be excluded from work until 48 hours after their symptoms end. See DHS Recommendations for Prevention and Control of Acute Gastroenteritis Outbreaks in Wisconsin Long-Term Care Facilities for additional guidance and recommendations.
- Frequently perform hand hygiene by washing hands with soap and water or using alcohol-based hand rub. While use of alcohol-based hand rub is effective for facilities experiencing ARI outbreaks, soap and water is the recommended method for hand hygiene after providing care or having contact with patients or residents with suspected or confirmed gastrointestinal illness.
- Ensure adequate cleaning and disinfection. High-touch surfaces and items should be cleaned and disinfected frequently and after each patient and resident use. Use Environmental Protection Agency (EPA) registered products and follow the manufacturer’s instructions for use, including contact time. Consider implementing a tool such as the DHS Non-Critical Items Cleaning and Disinfection Product List that defines which disinfection products are being used, which items are being cleaned and disinfected and how often, and which staff members are responsible for such tasks.
- Educate visitors on the type of PPE and other infection prevention principles that should be followed as part of their visit. Utilize signage at the entrance and throughout the facility that communicates instructions on current infection prevention and control practices being implemented. Visitors should be encouraged to stay home and not visit the facility while experiencing symptoms of any kind.
- Facilities with a confirmed or suspected COVID-19 outbreak should refer to CDC visitation guidance.
- DHS guidance regarding the management of visitors during a gastrointestinal outbreak is available.
- Encourage visitors, patients, residents, and health care personnel to cover coughs and sneezes. Consider posting visual reminders at the entrance of your facility and in strategic places (such as waiting areas, elevators, cafeterias).
- Encourage staff, patients, residents, and visitors to stay up to date with all recommended immunizations for respiratory viruses.
DHS Resources
CDC Resources
Questions?
For questions and additional outbreak assistance, reach out to the HAI Prevention Program at DHSWIHAIPreventionProgram@dhs.wisconsin.gov


