Patients and staff at New York City’s Memorial Sloan-Kettering Cancer Center are drinking bottled water after traces of the bacteria that causes Legionnaire’s disease were found in the tap water.

The director of the hospital’s infection control tells The Wall Street Journal that the risk of developing Legionnaires’ disease is low.

The director, Dr. Kent Sepkowitz, said the hospital stopped water usage as a precaution.

He said the bacteria results came Friday, one day after a patient who was in the hospital for other ailments was diagnosed with Legionnaire’s.

Sepkowitz said the hospital was working with city and state health officials to determine whether the patient contracted the disease before or after arriving at Sloan-Kettering.

He said the patient is responding well to antibiotic treatment for the disease.

(Source: NBC New York)