Some in the area say they were unaware of the outbreak of Legionnaires' disease, let alone the location of problem sites.

Harlem Hospital Center and a public health clinic are among the buildings with cooling towers that tested positive for Legionella, the bacteria that causes Legionnaires’ disease, during an outbreak in Harlem,

Legionnaires' outbreak in Harlem claims a fourth life, with 99 infected and linked to contaminated water-cooling towers.

The deadly Legionnaires’ outbreak gripping Harlem has city officials in hot water — as locals accused them Friday of dropping the ball on life-saving inspections and needlessly slow-walking revealing exactly where the disease hit.

What are the symptoms of this type of pneumonia, called Legionnaires' disease, and how do you treat it? Here's what you need to know.