County Reports Two Unrelated Measles Cases; Public Exposure Possible at Two Locations
County public health officials have confirmed two unrelated cases of measles.
Both people who got sick travel to San Diego for work. One of the cases involved public exposure.
Health officials say the infectious person, who did not have proof of measles vaccination, spent time at these locations:
- Marriott Marquis San Diego Marina located at 333 W Harbor Dr, San Diego, CA 92101 on May 17, 2026 from 9 a.m. to 3:45 p.m.
- Baskin Robbins located at 791 Palm Ave. Suite 103, Imperial Beach, CA 91932 on May 20 between 5 and 7:30 p.m.
County Immunization staff are working with the Marriott Marquis San Diego Marina to identify and follow up with potentially exposed employees, and notifications are also being sent to guests who were on site during those times.
“Measles spreads very easily, even through the air, so anyone who was at these locations during the listed times should watch for symptoms and contact their health care provider if they start to feel sick,” said Sayone Thihalolipavan, M.D., M.P.H., County public health officer.
People with symptoms are asked to call their healthcare provider before arriving so that infection control measures can be put in place.
Measles symptoms typically appear seven to 21 days after exposure. Early signs include fever, cough, runny nose and red eyes, followed by a rash one to four days later. People are contagious four days before and four days after the rash appears.
The best prevention against measles is vaccination. With outbreaks reported in several states, officials urge everyone to ensure they are fully vaccinated, especially travelers. Infants between 6 and 12 months of age who travel should get one dose. Anyone over 12 months who travels should receive two doses at least four weeks apart.
Complications are more common in children younger than 5 years old and adults 20 years and older. Severe cases can be life-threatening. There is no medicine that cures measles, but people who develop complications may need medical care tailored to those issues.
The second case of measles did not result in public exposure.
In March, the County reported one measles case in an out-of-state visitor. No additional local cases have been reported this year. Statewide, the California Department of Public Health has confirmed 49 cases so far this year.
For more information about measles and other vaccine-preventable diseases, please contact the County’s Immunization Branch at (866) 358-2966 or visit the website at www.sdiz.org.