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.

A fifth person has been killed by the Legionnaire’s disease outbreak ripping through Harlem, which has also sickened more than 100 others, health officials announced.

A new lawsuit is accusing a construction company of neglecting to clean stormwater from the cooling towers behind the deadly Legionnaire's disease outbreak in Harlem.

A fifth person has died as a result of the Legionnaires’ disease outbreak in Harlem, which has sickened more than 100, health officials said.

Gov. 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.

Symptoms mimic the flu but escalate quickly. Watch for cough, fever, chills, muscle aches, shortness of breath, and sometimes headache, confusion, diarrhea, or nausea. Symptoms usually show up 2–14 days after exposure.