So far, CCH has gotten in touch with over 300 individuals who might have been exposed to active tuberculosis. The eleventh case has not been tested genetically yet.Īs a result, Contra Costa Health (CCH) officials have issued a serious warning to the public, urging anyone who has spent time at the casino located on Pacheco Boulevard in the past five years to get tested for tuberculosis. Ten out of the 11 confirmed cases were genetically linked.Īlso, most of the confirmed cases were related to patrons and employees at California Grand Casino in Contra Costa County, California. A series of concerning genetic test results have recently confirmed 11 cases of tuberculosis in Contra Costa County, California.