Tuberculosis Exposure Alert for Trolley and Bus Riders in San Diego County
San Diego County's Tuberculosis Program and the Metropolitan Transit System are working to notify travelers who may have been exposed to tuberculosis on certain Trolley Blue and Green lines and bus routes between February and August 2023. Symptoms of active TB include persistent cough, fever, night sweats, and unexplained weight loss. The county is conducting additional lab tests to determine if there are any linkages between the recent cases and previous reports. TB is an airborne disease transmitted person-to-person through inhalation of bacteria. The number of active TB cases in San Diego County has decreased since the 1990s but has stabilized in recent years.
