Story highlights Another 368 mothers or parents, and 308 employees were also potentially exposed, a spokeswoman says

The Santa Clara Valley Medical Center says an employee was suspected of having active TB

That employee worked in the area of the newborn nursery and was placed on leave

(CNN) Three hundred and fifty infants were possibly exposed to tuberculosis at a California hospital by a hospital employee.

An additional 368 mothers or parents, and 308 employees were also potentially exposed, a spokeswoman told CNN.

The Santa Clara Valley Medical Center in San Jose said it was notified in mid-November that one of its employees was suspected of having active tuberculosis. That employee, who worked in the area of the newborn nursery, was placed on leave.

"While the risk of infection is low, the consequences of a tuberculosis infection in infants can be severe. That's why we decided to do widespread testing and start preventative treatments for these infants as soon as possible," Stephen Harris, chair of pediatrics, said in a statement.

According to the Centers for Disease Control and Prevention, there were 9,421 cases of tuberculosis in the United States in 2014.

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