Legionella Found in 10 Bronx Cooling Towers
Legionella Found in 10 Bronx Cooling Towers
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Key Points
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The city’s investigation began Thursday and covers Bronx ZIP codes 10451 and 10456. Eight of the 10 towers that tested positive were compliant with the 31-day testing requirement that took effect May 8, while two locations—820 Concourse Village West and 1265 Franklin Ave.—had not provided the required testing information.
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The follow-up culture tests may take up to two weeks; unlike PCR screening, they will determine whether live Legionella is present and, if so, measure its concentration in each cooling tower.
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The Yankees said the stadium installed new cooling towers in 2024 and conducts weekly bacterial and water-quality checks, with results submitted monthly to the city. The team also said the Health Department had not asked it to postpone games during the outbreak.
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The Yankees hosted a three-game series against the Mets during the weekend investigation and are scheduled to return home on Sept. 22 after a road trip, when they are due to begin a six-game homestand against the Rays and Orioles.
New York City health officials are investigating a Legionnaires' disease outbreak in the South Bronx after 10 people tested positive, including one death and three hospitalizations. Democratic and Chronicle reported that preliminary testing detected Legionella DNA in 10 of 24 cooling towers, including systems at Yankee Stadium, Lincoln Hospital, and Boricua College. City officials ordered all 10 property owners to drain, clean, and disinfect their towers by Monday.
The positive tests do not prove the towers caused the outbreak. Newsy Today noted that culture testing—which takes up to two weeks—must determine whether the bacteria are actually alive and infectious. Meanwhile, the Yankees said their stadium tower was sanitized Sunday and their Aug. 20 test was negative. No current cases have been linked to the ballpark.
DNA Detection Does Not Confirm Infection Source
Finding Legionella DNA is not the same as finding live bacteria that can sicken people. Record Online explained that PCR screening detects genetic material but cannot determine if the microbes are alive or dangerous. Culture testing will take up to two weeks and will measure how much viable bacteria exists in each tower.
Investigators must then compare culture results with patient locations and exposure timelines. Only then can officials attribute the outbreak to a specific cooling tower. Until culture testing is complete, the 10 buildings with positive PCR results remain suspects, not confirmed sources.
Compliance Rules Did Not Prevent Detection
Eight of the 10 affected cooling towers met New York City's 31-day testing requirement, which began May 8. Two locations—820 Concourse Village West and 1265 Franklin Ave.—had not provided required testing information. This shows that regulatory compliance can coexist with a detected hazard.
The gap suggests that testing frequency or enforcement may not fully prevent bacterial growth between inspections. City officials are now requiring immediate draining and disinfection of all 10 towers while they wait for culture results.
Yankees Maintain Stadium Safety Protocols
Marca reported that the Yankees installed new cooling towers in 2024 and conduct weekly bacterial and water-quality checks. Results are submitted monthly to the city. The team said the Health Department has not asked them to postpone any games during the outbreak.
The Yankees hosted a three-game series against the Mets during the weekend investigation. The team returns home Sept. 22 for a six-game homestand against the Rays and Orioles. City officials say tap water, showering, and air-conditioning remain safe at all affected buildings.
Residents Urged to Seek Care for Flu-Like Symptoms
La Tination reported that officials are advising people who live, work, or recently visited the Melrose and Morrisania neighborhoods to seek medical care if they develop flu-like symptoms such as fever, cough, or shortness of breath. Legionnaires' disease resembles pneumonia and can be serious or fatal, especially in older adults.
The city's investigation covers Bronx ZIP codes 10451 and 10456. Authorities emphasize that ordinary building entry and basic hygiene activities pose no known risk. Culture testing results will guide decisions about future cleaning or closures.
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