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.

G overnor Kathy Hochul defended New York City's response to the Legionnaires ' disease outbreak after officials on Tuesday confirmed the death toll had risen to five.

A pair of construction companies overlooked safety concerns, causing a “completely preventable” outbreak of Legionnaires’ disease in New York City that's killed at least five people and sickened dozens more,