(Santa Ana, CA) – The OC Health Care Agency (HCA) received confirmation of a measles case in an infant who had history of international travel. The HCA is notifying individuals who were exposed to the person in health care and other settings.
“Measles is highly contagious. Anyone planning domestic or international travel—or hosting visitors—should be fully vaccinated at least two weeks beforehand. Infants less than a year old who are traveling internationally should receive one dose of MMR vaccine before departure. Adults and others who are not immune remain at risk, especially as outbreaks continue across the country and worldwide,” said Dr. Anissa Davis, Deputy County Health Officer. “Vaccination is the best protection.”
According to the Centers for Disease Control and Prevention (CDC), there have already been 1,792 confirmed measles cases in the United States in 2026. By comparison, 2025 saw 2,267 cases, the highest annual total in more than 30 years. This is the third case of measles in Orange County in 2026…