Legionnaires' disease can be contracted by breathing in tiny ... infected with the life-threatening disease while working on construction sites at or near Harlem Hospital Center. Both complaints allege negligence, which they say led to the outbreak.

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.

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