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.

The final of 12 affected cooling towers in the Legionnaires' disease outbreak in Harlem was remediated on Friday. All 12 cooling towers in Central Harlem that tested culture positive for live Legionella bacteria have been fully drained,

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

A Legionnaires’ disease outbreak in Harlem has claimed a fourth life, with nearly 100 confirmed cases and more than a dozen people still hospitalized. For the first time, city officials have identified 12 cooling towers that tested positive for Legionella bacteria — including four city-owned buildings such as Harlem Hospital.

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.