Health department: Utah measles outbreak grows; Summit County reports five cases

Apr 6, 2026

Public‑health staff reported Utah's measles outbreak reached 570 confirmed cases and Summit County had five cases; roughly 8% of reported cases required hospitalization and about 10% were vaccine breakthrough cases, while MMR administration counts rose in March.

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A public‑health presenter updated the board that statewide measles case counts rose to 570 and that Summit County had recorded five cases in the current outbreak. "We're now up to 570 cases in Utah," the presenter said, adding that in March the state averaged about five to seven new cases per day and that roughly 8% of reported cases were hospitalized.

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