Four confirmed cases of E. coli O157:H7 since July 31 in central California have local health officials investigating the possible source of the dangerous bacteria. Two of the four affected people were hospitalized, although health officials said none of the individual cases were life-threatening. According to a Sunday story in the San Luis Obispo Tribune, two cases were reported July 31, the third on Aug. 1, and the fourth case on Aug. 6. The county health department would not release the names of the hospitals where the affected people sought medical attention nor where the individuals were from. The newspaper reported that one of those h0spitalized was a 12-year-old girl who had shown a dairy goat at the California Mid-State Fair held last month in Paso Robles. However, officials would not confirm whether they were focusing their investigation on the fair as the point of origin.