Rainwater left untreated in cooling towers atop city-owned Harlem Hospital fueled the Big Apple’s deadliest Legionnaire’s disease outbreak in a decade, the Rev. Al Sharpton charged Tuesday.

Two construction workers who claim they contracted Legionnaires' disease while working at or near Harlem Hospital Center are suing contractors they allege failed to safeguard water cooling towers at the building against contamination by the bacteria that causes the illness.

A law firm filed a lawsuit Aug. 20 against a New York City hospital’s construction company, alleging the company failed to treat bacteria-infected water in its cooling towers, leading to a Legionnaires’ disease outbreak.

Lawsuit filed after a deadly Legionnaires' outbreak in Harlem, alleging negligence by construction firms and NYC.

The Legionnaires' disease outbreak in Harlem has been traced to 12 cooling towers, including several at city-run buildings, officials said.

NEW YORK (TNND) — Two people are dead among the 58 who have been diagnosed with Legionnaires' disease in Harlem since July 25, according to New York health officials.

Legionella, the bacterium that causes Legionnaires' disease, was discovered in 12 cooling towers on 10 Harlem buildings, including a city-run hospital and sex heal

Kathy Hochul brushed off concerns about the city’s handling of Legionnaires’ disease prevention efforts on Tuesday after a fifth New Yorker died in an outbreak gripping Harlem. The insidious pneumonia-like illness has sickened at least 108 people – including 14 who were hospitalized – and killed five as it flooded five ZIP codes in Upper Manhattan,