Legionnaires' disease causes a serious form of pneumonia. It’s not spread person to person, but because the bacteria are in the air or in air handling systems, clusters of people can become infected.

A Legionnaires' disease outbreak in New York City has killed three people and sickened more than 70 people. Acting Health Commissioner Dr. Michelle Morse announced the details in a press conference on ...

Legionnaires' disease is a type of pneumonia caused by bacteria that grows in warm water. It has infected dozens of people in ...

Here’s what to know about water-cooling towers amid a cluster of Legionnaires’ disease cases in Central Harlem.