A measles case in a vaccinated Denver resident who recently visited Mexico prompted a health alert for those at Kaiser Permanente's Lakewood facility on Saturday between 10:30 a.m. and 1 p.m. This is Colorado's fifth measles case this year, four of which are linked to Mexico travel. While breakthrough cases are less contagious, officials urge anyone present at the clinic during that time to monitor for symptoms like fever, cough, and rash. The CDC reports a significant rise in measles cases nationwide, exceeding 884 this year.

Prepared by Olivia Bennett and reviewed by editorial team.