A Legionnaires' disease outbreak in New York's Central Harlem has now caused four deaths and sickened 101 people, New York City health officials confirmed.

MONDAY, Aug. 18, 2025 (HealthDay News) — A Legionnaires’ disease outbreak in Central Harlem has now caused four deaths and sickened 101 people, New York City health officials confirmed. The bacteria that cause the illness, called Legionella, were found in 12 cooling towers across 10 buildings, including NYC Health + Hospitals/Harlem.

Health officials in New York City say a cluster of Legionnaires’ disease in Central Harlem has grown to 101 cases, including four deaths.