Wisconsin DHS announce measles exposure in Milwaukee County

MILWAUKEE COUNTY (WLUK) — The Wisconsin Department of Health Services announced Friday evening that a measles case has been confirmed in Milwaukee County.

The Wisconsin DHS, City of Milwaukee Health Department, and Walworth County Department of Health and Human Services are all working on the investigation.

They say the infected individual was traveling through Milwaukee International Airport to Walworth County.

The case was exposed to measles outside of Wisconsin and is not linked to the current confirmed cases in Waukesha and Dane Counties. Due to privacy reasons, no additional personal identifying information will be released at this time.

Investigators say people who traveled on Flight WN 266 from Phoenix, Arizona to Milwaukee Mitchell International Airport, or were present at the airport on January 29, 2026 from 10:31 p.m. to 12:31 a.m. may have been exposed.

Measles of symptoms typically appear roughly 10 to 21 days after exposure, and include:

• Runny nose
• High fever
• Tiredness
• Cough
• Red, watery eyes
• A red rash with raised bumps that start at the hairline and move to the arms and legs three to five days after symptoms begin

Wisconsin DHS says anyone developing symptoms of measles should stay home and call their doctor’s office or clinic before visiting.