SAN ANTONIO — Brooke Army Medical Center believes it’s identified the likely source of the Legionella bacteria that infected an employee early February.

After testing numerous sources, a hot water heater in the building was determined to be the source for the Legionella.

Legionella bacteria can cause symptoms ranging from a mild flu-like illness to a type of pneumonia called Legionnaires’ disease. The bacteria is airborne and is transmitted when someone breathes in mist of vapor containing the bacteria.

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BAMC said it conducted extensive testing after two cases of Legionnaires’ disease were confirmed in August, but no source for the bacteria was found at that time.

“We have been conducting extensive testing in and around building 15 to determine the source of the Legionella bacteria,” said Col. Traci Crawford, BAMC’s deputy commanding officer. “Ensuring the health and safety of our patients and staff are paramount.”

All personnel were moved out of the affected building on Feb. 6, to other areas within the facility, and the building remains vacant and secured.

“We are fully cooperating with local and regional public health officials to ensure there is no further risk for exposure moving forward,” Crawford said.

“BAMC leadership is fully committed to providing a safe environment for all patients and staff,” she added.

People who have concerns about their health should contact their medical provider. For more information on Legionella, visit cdc.gov/legionella.