Story perspectives
Utah Flu Outbreak: 44 Cases, 9 Infants Treated
9/27/2025
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Story summary
- Nine of 11 exposed infants received prophylaxis after a September 15 visit in Utah.
- The 2025 outbreak includes 44 cases in Utah and about 1,500 nationwide; Weber-Morgan Health Department organizes flu and MMR vaccine clinics.
- The measles, mumps, rubella vaccine (MMR) is 97% effective; treated infants will have delayed MMR schedules.
