A Legionnaires' disease cluster in the Harlem area of New York City has caused five deaths and sickened over 100 people. Here's what it is, symptoms and how it's spread.

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.

An outbreak of Legionnaires' disease in New York City's Harlem neighborhood thought to have originated in contaminated cooling towers has killed five people and put 14 in the hospital, health officials said on Monday.