Yankee Stadium Cooling Tower Tests Positive for Legionella

Yankee Stadium Cooling Tower Tests Positive for Legionella

Aerial view of Yankee Stadium in the Bronx
Yankee Stadium's cooling tower tested positive for Legionella bacteria, though the Yankees say it is unrelated to a broader Bronx outbreak.Illustration: The Frank

The News

New York City health officials say Legionella — the bacteria that causes Legionnaires' disease — has been detected in 10 cooling towers in the South Bronx, including the tower serving Yankee Stadium.

The Health Department announced the detections on Sunday, as the city works a Legionnaires' outbreak in the Bronx.

The Yankees say the bacteria found in the stadium's cooling tower is not linked to that outbreak.

Timeline

Sept. 13, 2026

The New York City Health Department says Legionella bacteria has been detected at 10 South Bronx cooling towers, among them the tower that serves Yankee Stadium, the New York Post reports.

Sept. 14, 2026

The Yankees say the bacteria found in the stadium cooling tower is not connected to the Bronx outbreak, according to the Associated Press and The Independent.

Reactions

The Yankees' position, reported by the Associated Press and The Independent, is that the stadium's cooling tower is not tied to the outbreak in the surrounding borough.

City health officials framed the finding as part of their sweep of South Bronx cooling towers, identifying the stadium tower as one of 10 where the bacteria turned up.

What's Next

The Health Department's testing of South Bronx cooling towers is the active front of the city's outbreak response, and further results from those towers would come from the department.

The Frank will update this story as the city releases case numbers and any remediation orders for the affected towers.

More

Cooling towers are a routine focus for health investigators in Legionnaires' clusters because they are part of large buildings' water systems — which is why New York's health department screens them borough-wide when cases appear.

The Yankee Stadium tower is one of 10 that tested positive in this round, so a positive test alone does not establish that any tower caused an infection.

Poll

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