The Sconi

The Wisconsin Department of Health Services (DHS) and Oconto County Public Health have confirmed nine cases of measles in Oconto County. According to DHS, one case was verified through testing at the Wisconsin State Laboratory of Hygiene, while eight additional cases were confirmed based on exposure and symptoms. All individuals affected were exposed to a common source during out-of-state travel. No further information about the patients will be released due to privacy laws.

DHS is working with Oconto County Public Health to identify and notify anyone who may have been exposed to the virus. At this time, officials report that no public points of exposure have been identified and that the risk to the community remains low.

Measles is a highly contagious disease that spreads through the air when an infected person coughs or sneezes. The virus can remain in the air for up to two hours after a sick person has left an area. DHS notes, "It is so contagious that if one person gets it, up to 90% of the people around them may also become infected if they are not vaccinated."

Symptoms usually appear between 10 and 21 days after exposure and can include fever, rash, cough, runny nose, and red eyes. Measles can cause serious complications such as pneumonia, brain damage, deafness, and can sometimes be fatal. "One in four people who get measles in the United States will be hospitalized," according to DHS.

Officials advise anyone experiencing symptoms to stay home and contact their doctor or clinic before visiting so precautions can be taken to prevent further spread.

Vaccination remains the most effective way to prevent measles. Two doses of the measles vaccine are considered 97% effective at preventing infection. Generally, people born before 1957 are presumed immune; all other adults without laboratory evidence of immunity should receive at least one dose of a measles-containing vaccine, while children should receive two doses. More information on vaccination guidelines is available on the DHS measles webpage.

Parents and caregivers can verify vaccination status by checking the Wisconsin Immunization Registry or contacting healthcare providers or local health departments.

Unvaccinated individuals are still eligible for vaccination through regular healthcare providers, clinics, pharmacies, or local health departments. Free assistance in finding medical care is available by dialing 211. Those unable to receive the MMR vaccine—such as pregnant individuals or children under 12 months—should consult their doctor or community clinic for guidance.

Updates on this investigation will be posted on the DHS Outbreaks and Investigations page.