L.A. County Confirms Fifth Measles Case Linked to LAX Arrival

Overview

• Los Angeles County confirmed its fifth measles case of 2026 in a resident who traveled internationally this week.
• The traveler arrived on Alaska Airlines Flight 1354 and was in LAX’s Tom Bradley International Terminal B between 6 and 8 a.m., which officials identified as a possible exposure window.
• County health staff, working with the CDC, will notify nearby seatmates through local health departments, and affected clinics are alerting patients and staff.
• People who were in Terminal B at that time should check immunity, watch for fever, cough, red eyes, and a rash, and monitor for symptoms through June 4.
• Health leaders urge MMR vaccination as measles cases rise across the U.S., with 1,814 cases reported this year, including 48 in California.