Measles In Colorado Latest NewsLatest News On Measles In Colorado Latest First measles ‘breakthrough’ case of the year identified in vaccinated Broomfield County resident, CDPHE says3/17/2026 8:25 PM Second measles case tied to Broomfield High School confirmed by CDPHE; more exposure locations identified3/2/2026 8:24 PM Travelers could have been exposed to measles at DIA earlier this month, state health officials say12/23/2025 3:13 PM Colorado sees worst measles year in 3 decades after an additional 5 cases are confirmed in Mesa County9/2/2025 6:21 PM Vaccinated adult in Denver tests positive for measles, becoming Colorado's fifth case this year4/25/2025 6:31 PM