Overview

Los Angeles County has confirmed its fifth case of measles in 2026, involving a resident who recently returned from international travel. The case was reported on Saturday, raising concerns about potential exposure among travelers at the airport.

The infected individual arrived on Alaska Airlines flight 1354 at Tom Bradley International Airport Terminal B. Health officials are urging those who were present during specific hours to check their vaccination status and monitor for symptoms.

Key details

  • Confirmed case of measles reported in Los Angeles County.
  • This is the fifth case in the county for the year 2026.
  • The infected individual traveled internationally before returning.
  • The case was reported on Saturday by county health officials.
  • The traveler arrived on Alaska Airlines flight 1354.
  • Arrival at Tom Bradley International Airport Terminal B occurred on Thursday.
  • Potential exposure for individuals at Terminal B from 6 a.m. to 8 a.m. on Thursday.
  • Passengers seated near the infected traveler will be notified by local health departments.
  • People exposed may develop measles symptoms from 7 to 21 days after exposure.
  • Those who have had measles or received the vaccine are likely protected but should monitor symptoms.
  • Last day to monitor for symptoms is June 4, 2026.
  • Healthcare facilities are notifying patients and staff who may have been exposed.

Context

Measles is known to be highly contagious, spreading through the air and direct contact with an infected person. Symptoms typically include fever, cough, red-watery eyes, and a rash that starts on the head and spreads throughout the body.

What happens next

The Los Angeles County Department of Public Health is actively working to identify other potential exposure sites and will continue to inform the public about vaccination and symptom monitoring.

What we don't know yet

Details regarding the specific location of the traveler's international destination and the vaccination status of the infected individual have not been confirmed.