MADISON, Wis. — Wisconsin is approaching 400 cases of measles as the outbreak continues to grow, according to a Wisconsin Department of Health Services tracker updated Friday.
The tracker identified 392 cases, including 389 among unvaccinated people.
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The tracker showed eight hospitalizations and no deaths. Grant County had the most cases, with 139, followed by Lafayette County with 115 confirmed or probable cases.
Confirmed cases have also been reported in Iowa, Rock, Chippewa, Marathon, Vernon, Dane, Waukesha, Marquette and Jackson counties.
Jackson County confirms 2 measles cases linked to out-of-state travel
Measles, which is spread through the air, can persist for up to two hours after an infected person coughs or sneezes. Although measles is often associated with fever and rash, it can cause serious complications, including pneumonia, brain damage and deafness. Young children, pregnant women and people with weakened immune systems are particularly vulnerable to serious illness.
Symptoms include a runny nose, high fever that can exceed 104 degrees Fahrenheit, fatigue, cough, and red, watery eyes. A red rash with raised bumps usually starts at the hairline and spreads to the arms and legs three to five days after other symptoms start. Symptoms usually appear 10 to 12 days after exposure.
The measles-mumps-rubella vaccine, known as the MMR vaccine, provides the best protection against measles.
Measles reported in Richland County
The Marquette County Health Department said Wednesday it has confirmed at least three cases associated with out-of-state travel among unvaccinated people. The Wisconsin State Health Laboratory confirmed the cases through testing.
Health authorities reported 36 cases of measles last year.
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