Measles Exposure Alert: Santa Clara County Confirms Case Linked to SFO and Two San Jose Locations

The County of Santa Clara Public Health Department has confirmed an adult measles case tied to multiple public locations in the Bay Area. Officials report the individual likely acquired measles during international travel and visited public areas while contagious on June 8. To protect privacy, no further identifying details have been released.

Possible Exposure Sites (June 8)

• San Francisco International Airport — International Terminal (passport control, customs, international baggage claim): 8:30–11:00 a.m.
• Trader Joe’s — 635 Coleman Ave, San Jose: 8:00–10:00 p.m.
• International Halal Market — 960 E Santa Clara St., San Jose: 8:00–10:00 p.m.

Who Should Be Concerned

Anyone who was at the listed locations during the specified times may be at risk. People who are pregnant, infants, those with weakened immune systems, and anyone who is not fully vaccinated should contact their healthcare provider immediately.

What You Should Do

• Review your immunization records at MyVaccineRecord.cdph.ca.gov or contact your healthcare provider to confirm protection against measles.
• Monitor for symptoms for 7–21 days after the potential exposure date. Early symptoms can include fever, cough, runny nose and red eyes.
• If you develop symptoms, call ahead before visiting any medical facility and tell them you may have been exposed to measles so they can take precautions to protect others.
• Avoid large gatherings and, if you are unvaccinated and exposed, quarantine as much as possible to reduce the risk of spread.

Symptoms and Timing

Common measles symptoms include fever, cough, runny nose, red eyes and a characteristic rash. Symptoms may appear 7–21 days after exposure (often within 7–10 days for the first signs). Some people—especially young children, pregnant people and the immunocompromised—can develop serious complications. Seek medical advice promptly if symptoms occur.

“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.”

For up-to-date local guidance and resources, contact the County of Santa Clara Public Health Department or visit the California Department of Public Health website.