Public Health Department Warns of Public Measles Exposure in San Francisco International Airport and Santa Clara County

SANTA CLARA COUNTY, Calif. – The County of Santa Clara Public Health Department was notified of a case of measles in a Santa Clara County resident who visited public places while infectious. The individual traveled through San Francisco International Airport and visited two San Jose businesses on June 8, 2026. The person with measles is an adult believed to be exposed to measles during international travel. Further information about the individual will not be released for reasons of medical privacy.

Members of the public who visited the sites below at the dates and times indicated may be at risk of developing measles seven to 10 days after they were exposed to the individual. Any unvaccinated individual traveling or joining large gatherings should be aware of their increased risk of measles if exposed.

Date	Location	Time of Possible Exposure
June 8, 2026	San Francisco International Airport International Terminal, including passport control, customs, and international baggage claim area	8:30 to 11 a.m.
June 8, 2026	Trader Joe’s 635 Coleman Ave, San Jose, CA 95110	8 to 10 p.m.
June 8, 2026	International Halal Market 960 E Santa Clara St., San Jose, CA 95116	8 to 10 p.m.

If you visited the sites above at the dates and times indicated, Public Health recommends you:

Review your immunization records to learn if you are protected against measles. Visit MyVaccineRecord.cdph.ca.gov or contact your healthcare provider.
Call your healthcare provider immediately if you are pregnant, an infant, have a weakened immune system, or are unimmunized.
Monitor for symptoms for seven to 21 days after the day of potential exposure.
If you develop symptoms of measles, it is very important to call ahead to any medical facility before going there and to tell them that you may have been exposed to measles. This allows the facility to take measures to protect other patients and visitors.
Do not attend large gatherings. Measles is one of the most infectious diseases in the world and spreads very rapidly. Given the number of large international events currently happening throughout the Bay Area, it is especially important that any unvaccinated, exposed individual quarantines to the best of their ability and avoids contact with others if feeling unwell.

Common symptoms of measles include fever, cough, runny nose, red eyes, and a rash, which can appear seven to 21 days after the exposure. Some people may develop more serious complications. If you develop these symptoms, call your doctor right away.

In collaboration with Centers for Disease Control and Prevention and California Department of Public Health, Public Health is working with the above locations and agencies to identify close contacts who were exposed to measles during the infectious period.

“Exposures like this one remind us of the importance of vaccination. Fortunately, the Bay Area region has strong community immunity, because of our very high rates of vaccination or from childhood exposure decades ago,” said Dr. Sarah Rudman, Health Officer and Public Health Director for the County of Santa Clara. “Two shots of MMR or MMRV vaccine continue to be the best protection against measles and can stop a measles outbreak in its tracks, which is especially important during times of gathering and travel.”

The Bay Area region benefits from very high rates of vaccination against measles. Most people received two doses of measles vaccine (often called the “MMR vaccine”) as children and are therefore at much lower risk of getting measles if exposed. Young children, unvaccinated children and adults, and those with weakened immune systems are at greater risk of developing more severe health complications. Two doses of MMR vaccine is the best protection against the measles.

Santa Clara County continues to follow the existing state vaccination guidelines. These recommended vaccines must be covered by almost every type of health insurance in California. MMR and other recommended vaccines help people live longer, healthier lives, not impaired or cut short by a preventable disease. More information about measles can be found at sccphd.org/measles.

About the County of Santa Clara Public Health Department
The County of Santa Clara Public Health Department is committed to protecting and improving the health and well-being of county residents. By focusing on its core values of equity, diversity and collaboration, accountability, integrity, and impact, the Public Health Department works to create a safe, healthy community where all people thrive.

To learn more about how the Public Health Department prevents disease and injury, educates communities, promotes healthy lifestyles, and influences sound health policy, please visit our website, sccphd.org.

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