A Legionnaires' disease outbreak in New York's Central Harlem has now caused four deaths and sickened 101 people, New York City health officials confirmed.

Fifty-eight people have been infected—and two have died—in a New York City outbreak of Legionnaires’ disease—a severe type of pneumonia caused by a bacterium commonly associated with air-conditioning

A little-known illness called Legionnaires’ disease has infected at least 58 people in New York City’s Central Harlem neighborhood in the past two weeks. Two people have died during the outbreak, which has been tied to cooling towers that tested positive for the disease-causing bacterium Legionella pneumophila,