New York City health officials are investigating cases of Legionnaires' disease at an apartment building in the Bronx.

Health officials have confirmed 112 cases of Legionnaires’ disease and six deaths in Central Harlem, following an outbreak that began in late July 2025. Investigations by the Health Department identified Legionella bacteria in 12 cooling towers across 10 buildings,

Just a single case of the severe pneumonia was added to the city's tally on Monday; it's still the deadliest outbreak in years.