Kaiser Permanente confirmed late Wednesday that 18 people were infected with Legionella at its Santa Clara medical center, where officials are still trying to determine the source of the contamination.
The health system said it found the infections during routine monitoring. The hospital and its nearby medical office building remain open and are operating normally.
Kaiser did not say whether the 18 infected people were patients, employees or visitors. It also did not say whether anyone had been hospitalized…