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... Utah has spent the past year fighting measles outbreaks " a grim milestone that could affect whether the United States can keep its measles-free designation.
More than 680 people have gotten sick since the state's first outbreak began on June 20, 2025.
Unlike measles outbreaks in Texas, South Carolina and Arizona, the spread in Utah has been tough to contain to one region " infecting undervaccinated communities in nearly every county.
Measles popped up in healthcare settings, big-box stores and restaurants, and youth sporting events. In February, an exposure at a state high school wrestling championship sparked at least 46 cases among attendees. ...
The measles vaccine is safe and 97% protective after two doses.
Though Utah's spread has slowed in recent weeks, state epidemiologist Leisha Nolen sees little opportunity to rest. She's worried the start of school and arrival of colder weather in the fall will cause measles to surge again.
"It's still here, it's still transmitting," she said. "We just need those few cases to hit the wrong community and it could flare up really big again."
The worst spread has been in the southwestern part of the state, where 265 people have fallen ill with the vaccine-preventable disease since last summer. Overall, measles infections hit 22 of the state's 29 counties.
In the state's rural northeast, the conditions were also ripe for measles to spread. Daggett, Duchesne and Uintah counties -- collectively dubbed the "tricounty" health region -- has seen the second-largest decline in childhood vaccination rates in the state.
More than 16% of the region's kindergarteners were missing their measles vaccines in the last school year, according to state data. Statewide, 12.8% were missing their vaccine, putting the state far short of the 95% vaccination rate needed to prevent measles outbreaks. ...
