SAN DIEGO (KGTV) -- San Diego health officials are working with UCSD to notify people who may have been exposed to tuberculosis at the school’s La Jolla campus. According to the San Diego County Health and Human Services Agency, the period of potential exposure was between January 25 through May 15. Those who are known to have been exposed were notified. “Testing is recommended for all those exposed to assure they are not infected, since they may not have symptoms,” said Wilma Wooten, M.D., M.P.H., County public health officer. "For anyone infected, early diagnosis and prompt treatment can prevent disease.” Tuberculosis is transmitted from person to person through indoor air during prolonged contact. Most people who are exposed do not become infected. Symptoms of TB include persistent cough, fever, night sweats and unexpected weight loss. No-cost testing will be provided those identified starting May 30 at the campus Student Health Center on Library Walk. The number of annual cases of TB has decreased since the early 90s and has stabilized in recent years. So far in 2018, 64 cases have been reported.