4th Measles Case Confirmed in Los Angeles County

LA Press release date: February 19, 2026

The Los Angeles County Department of Public Health is looking into a confirmed measles case involving a resident who recently traveled internationally. Health officials are actively investigating potential exposure sites and contacting individuals who may have been exposed.

Potential Exposure at LAX Airport

This traveler arrived on Singapore Airlines Flight #0038 at the Los Angeles International (LAX) Airport, Tom Bradley International Airport Terminal (Terminal B), on February 9.

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People who were at Terminal B on February 9 from 7:30 p.m. to 9:40 p.m. may have been exposed to the measles virus.

In collaboration with the Centers for Disease Control and Prevention (CDC), passengers seated near the infected traveler will be notified by their respective local health departments. The CDC and local public health departments routinely work together to investigate communicable disease exposures on international flights to the United States.

Additional Potential Exposure Locations

Additionally, people who were at the following locations during the listed dates and times may have been exposed and be at risk of developing measles:

• Burger King #317, 1212 W Beverly Blvd, Montebello, CA 90640, February 10, 2026, 5:30 p.m. – 7 p.m.
• Taqueria El Atacor #3, 11156 1/2 Whittier Blvd, Whittier, CA 90606, February 11, 2026, 3 p.m. – 5 p.m.
• Domino’s Pizza #7857, 803 W Whittier Blvd, Montebello, CA 90640, February 12, 2026, 4 p.m. – 5:15 p.m.
• 7-Eleven #25387, 1106 W Beverly Blvd, Montebello, CA 90640, February 13, 2026, 4:30 p.m. – 5:45 p.m.

Who Is Most at Risk?

Public Health emphasizes that individuals at highest risk include:

• Infants too young to be vaccinated
• Pregnant individuals
• Immunocompromised individuals
• Those who are unvaccinated

Vaccination remains the most effective preventive measure against measles.

What To Do If You May Have Been Exposed

Public Health advises anyone who was at identified exposure locations during the specified times to:

1. Review their vaccination status.
2. Monitor for symptoms for 21 days after exposure.
3. Contact a healthcare provider before visiting a clinic or emergency department if symptoms develop, to avoid exposing others.

Early communication with healthcare providers is critical in preventing additional spread.

Clinical Perspective

For healthcare providers, this update is a reminder to:

• Consider measles in patients presenting with febrile rash illness.
• Obtain travel history.
• Report suspected cases immediately to Public Health.
• Implement airborne precautions when indicated.

About Measles

Why Measles Matters

Measles is not a mild childhood illness. It is one of the most contagious viral diseases known. The virus spreads through airborne droplets when an infected person coughs or sneezes. It can linger in the air and infect others even after the infected person has left the space.

Symptoms of Measles

Common symptoms include:

• High fever
• Cough
• Runny nose
• Red, watery eyes
• Rash that typically begins on the face and spreads downward

Symptoms generally appear 7 to 14 days after exposure.

Measles Prevention

Measles can be prevented with a measles, mumps, and rubella vaccine (MMR or MMRV). The MMR vaccine protects against three diseases: measles, mumps and rubella. The MMRV vaccine protects against four diseases: measles, mumps, rubella, and varicella (chickenpox). They are administered in two doses and are highly effective: two doses are 97% effective against measles and one dose is 93% effective. The spread of measles can be prevented if 2-dose coverage of vaccine remains at 95% or above in the community. For more information on measles, visit: ph.lacounty.gov/measles.

Most health insurances cover the cost of the MMR and MMRV vaccine. Insured persons should check with their doctor or local pharmacy to see what vaccines are offered. Uninsured or underinsured children and adults can access free or low-cost vaccines at clinics enrolled in the Vaccines for Children (VFC) and Vaccines for Adults (VFA) program. For a list of clinics that offer free or low-cost immunizations for persons who are uninsured or underinsured, call 2-1-1 or visit: http://publichealth.lacounty.gov/ip/clinics.htm.

In the United States, as of February 12, a total of 910 measles cases have been reported this year, which is the highest number of measles cases in January since the United States achieved elimination status in 2000. Most of these cases are linked to an ongoing measles outbreak in South Carolina and one outbreak involving Arizona/Utah. The majority of cases are unvaccinated or have unknown vaccination status. Three percent of these cases required hospitalization for management of measles complications or isolation. Travelers should also exercise caution and confirm immunity before visiting Mexico, as there is an ongoing measles outbreak with over 10,000 cases reported. In 2025, there were nine cases of measles in individuals who were in Los Angeles County while infectious — five residents and four non-residents. The last case of measles in a Los Angeles County resident was reported on February 2, 2026.

Los Angeles County continues to monitor the situation and will provide updates as needed.

About The Los Angeles County Department of Public Health 

The Department of Public Health is committed to promoting health equity and ensuring optimal health and well -being for all 10 million residents of Los Angeles County. Through a variety of programs, community partnerships and services, Public Health oversees environmental health, disease control, and community and family health. Nationally accredited by the Public Health Accreditation Board, the Los Angeles County Department of Public Health comprises of more than 5,000 employees and has an annual budget of $1.3 billion.