NYC Health Department Investigates Cases of Legionnaires’ Disease in Bronx

A water cooling tower that was found to have traces of legionella pneumophila bacteria, which may have helped cause the recent outbreak of Legionnaires' disease in the Bronx, is seen on top of the United States Post Office at 558 Grand Concourse, in the Bronx borough of New York on Aug. 13, 2015. Andrew Burton/Getty Images

The New York Health Department announced Friday that an investigation is being conducted into a community cluster of Legionnaires’ disease in the Highbridge neighborhood in the Bronx and adjacent areas.

Since May 9, four individuals have been diagnosed with the disease—a type of pneumonia characterized by flu-like symptoms, cough, fever, muscle aches, diarrhea, and breathing difficulties—with results pending for other people.