Iowa's measles outbreak has climbed to 50 confirmed cases in 2026, and health officials have added a Hy-Vee grocery store in Keokuk to the list of places where shoppers may have been exposed. Anyone who was inside the store at 3111 Main Street between 1:30 p.m. and 3:45 p.m. on Oct. 30 could have come into contact with the virus, according to local reporting.
The Keokuk Hy-Vee location was identified as a potential exposure site in reporting from KWQC, which also listed Mitchell County Regional Health Center in Osage as a site of concern on two separate dates. People at the Osage health center between 9:45 a.m. and 1 p.m. on Oct. 29, or between 10:55 a.m. and 2:15 p.m. the following day, may also have been exposed, per that report. The health center is located at 616 N 8th St. in Osage.
The statewide case count reached 50 as of Wednesday, Nov. 4, according to the Des Moines Register. That's a dramatic jump from where the outbreak stood just a couple months earlier — Iowa had only 17 reported cases by the end of August. The newspaper's reporting noted that public health officials have evidence the virus has been spreading from person to person within the state.
A Steep Climb From Last Year's Numbers
The scale of this year's outbreak stands in sharp contrast to recent history. Iowa reported just nine confirmed measles cases in all of 2025, the Register's report noted, making the 2026 total more than five times higher with weeks still left in the year. Iowa's first measles case of 2026 was confirmed in July, according to the same report, though a state health agency release placing that initial case on July 8 carries lower confidence in available records.
Iowa isn't alone in seeing elevated measles activity this year. The Register's report also noted that neighboring Wisconsin has a large outbreak of its own underway, involving hundreds of cases concentrated in the southwestern part of that state. Nationally, measles activity has also been running high in 2026, though the most recent nationwide figures available were drawn from a lower-confidence source and haven't been independently verified for this report.
What Officials Are Advising Iowans
Keokuk and Osage now join an earlier pair of exposure locations identified by Iowa officials on Nov. 4, bringing the known tally of flagged sites to three. The Hy-Vee and health center listings come with the same guidance health officials have issued throughout the outbreak: anyone who was present during the identified windows should watch for symptoms for 21 days following potential exposure, per Iowa HHS guidance reported by KWQC.
Measles symptoms to watch for include fever, cough, runny nose, red or watery eyes, and rash, according to the station's report. Anyone who develops symptoms is advised to call their healthcare provider before showing up in person, so the provider can prepare for a patient with a possible measles exposure rather than risk exposing others in a waiting room.
The outbreak's spread has prompted a response beyond simply tracking new cases. As WHO13 has reported, public health officials are working with affected families and community leaders to identify illnesses, share information, and ensure access to vaccination. Measles is among the most contagious viruses known, and outbreaks like this one tend to take hold fastest in communities where vaccination rates have slipped.
For now, Iowans in the Keokuk and Osage areas who visited the listed locations during the specified windows are being urged to stay alert for symptoms over the coming weeks, and to call ahead before seeking medical care if they start to feel sick.
