Iowa Measles Outbreak Reaches 16 Cases With New Ottumwa Restaurant Exposure

A Growing Outbreak Hits a New City

A southern Iowa measles outbreak that began quietly in July has now spread to Ottumwa, with health officials confirming that a contagious individual dined at a local Pizza Ranch while infected. Health officials said someone who was contagious visited Pizza Ranch at 1791 Venture Drive in Ottumwa from noon to 3 p.m. on Aug. 14. It's a stark reminder that measles doesn't stay put — and that a single infected person moving through a public space can set off a chain of exposures across an entire region.

The Iowa Department of Health and Human Services says as of August 21 there are 16 confirmed cases of measles in 2026 across Iowa. On August 17, Iowa HHS confirmed 12 measles cases with evidence of person-to-person spread — and the case count has continued climbing since. Iowa HHS confirmed Iowa's first 2026 case of measles in July. What started as a single case has ballooned into a full-blown outbreak in a matter of weeks.

Where the Virus Has Been

The exposure list has grown considerably as investigators trace the virus's path. Previously identified exposure locations include Natural Grocers in Clive, Vero Health Center in West Des Moines, Office Depot in West Des Moines, and Menards in Des Moines — all on July 28 — as well as Wells Hometown Drug in Bloomfield on July 30 and JR Feed and Supply in Bloomfield on August 9. The Ottumwa Pizza Ranch is now the latest addition to that list, pushing the outbreak's geographic footprint further into southern Iowa.

According to the agency, 13 of 15 measles cases involved people who had not been vaccinated. That figure aligns with a troubling national trend. As of July 2, a total of 2,170 confirmed measles cases had been reported across the United States in 2026, with 93% involving people who were unvaccinated or had unknown vaccination status. The pattern is consistent: this disease finds its footing where vaccination rates fall short.

What You Should Do Right Now

If you were at the Ottumwa Pizza Ranch on August 14 between noon and 3 p.m., health officials want you to watch yourself closely. Anyone who was at that location during that time should monitor for symptoms, including fever, cough, red or watery eyes, runny nose, and a rash. Measles symptoms can take up to 21 days to appear after exposure, so vigilance over the coming weeks matters.

Critically, if symptoms do develop, don't just show up at a clinic or emergency room. People who believe they were exposed and are experiencing symptoms should call their health care provider or nearest emergency room before arriving and tell staff about the possible measles exposure. That call-ahead step helps medical staff take precautions and prevents the virus from spreading further in waiting rooms. People who are not vaccinated against measles or are unsure whether they are immune should contact a health care provider or local public health agency about the measles, mumps and rubella (MMR) vaccine.

The Bigger Picture

Iowa's outbreak is unfolding against a backdrop of surging measles activity nationwide. Across the United States, a total of 2,289 confirmed measles cases were reported in 2025, resulting in 243 hospitalizations and three deaths. Iowa itself is not immune to that trajectory. Measles is a highly contagious viral illness that is spread through the air when an infectious person coughs, sneezes, or breathes — and it can linger in a room long after the infected person has left.

The Iowa Department of Health and Human Services has confirmed evidence of person-to-person spread, and state and local public health agencies are working with affected families and community leaders to identify illnesses and provide access to vaccination. With back-to-school season underway and community gatherings picking up, health officials face a narrow window to contain what is becoming one of Iowa's most serious measles events in recent memory. The coming weeks will reveal whether the outbreak has been caught in time — or whether the exposure list will keep growing.