The Solomon R. Guggenheim Museum, an iconic architectural masterpiece designed by Frank Lloyd Wright, has recently been identified as one of 31 buildings in Manhattan’s Upper East Side that tested positive for Legionella bacteria, the cause of Legionnaires’ disease. This severe form of pneumonia has prompted the New york city Health Department to order extensive cleaning and disinfection of cooling towers across the affected area.
The museum, a UNESCO World Heritage site, was among the 19 buildings that have already completed the necessary remediation work. The remaining buildings were expected to finish their cleaning processes by Saturday. City officials have emphasized that the positive test results do not confirm any of the buildings as the source of the outbreak, as the tests could not distinguish between live and dead bacteria.
The Guggenheim Museum Remains Open
The Guggenheim Museum has remained open throughout the remediation process, with officials assuring the public that no additional action is needed at this time. The museum has an outside company that conducts regular monthly testing and treating of its cooling tower. A statement from the museum noted that the positive test poses no risk to anyone inside the building, except for a limited number of facilities staff who regularly work in proximity to the cooling tower.
The museum’s union, UAW Local 2110, has expressed satisfaction with the museum’s response thus far. Olga Brudastova, the president of the union, confirmed that the Guggenheim is following all necessary protocols and that the city has not suggested any additional measures. The union is also monitoring the situation closely, given the recent contract negotiations and the potential for a strike.
The Spread of Legionnaires’ Disease in New York City
More than 50 people have been diagnosed with Legionnaires’ disease in connection with the Upper East Side cluster, with fewer than 20 remaining hospitalized. No deaths have been reported in this outbreak. However, last year, a major outbreak in Harlem resulted in seven deaths and more than 100 illnesses. That outbreak was traced to cooling towers atop Harlem Hospital and a nearby construction site where the city’s public health lab is located.
Legionella bacteria thrive in warm water and can spread through building water systems such as showerheads, hot tubs, and cooling towers. These structures, typically found on the tops of buildings, control the temperatures of systems like refrigeration but do not affect drinking water or indoor air. Legionnaires’ disease is not transmitted person-to-person but is contracted by breathing in tiny droplets of contaminated water.
Symptoms and Risk Factors
Symptoms of Legionnaires’ disease usually develop two days to two weeks after exposure and include cough, fever, headaches, muscle aches, and shortness of breath. People at an increased risk for the disease include those who are age 50 or older, smoke or vape, have a chronic lung disease, or have a weakened immune system. The respiratory ailment’s name originates from an outbreak that hit attendees of an American Legion convention in Philadelphia in 1976.
Citywide Efforts to Contain the Outbreak
The New York City Health Department has been actively inspecting cooling towers in the Upper East Side to check for signs of Legionella. Mayor Zohran Mamdani has promised to make publicly available a list of the locations where the bacteria has been found, a practice not previously followed by the city. The recent heat wave has contributed to the proliferation of Legionella, which thrives in stagnant warm water.
As the city continues to address the outbreak, the Guggenheim Museum and other affected buildings are taking all necessary precautions to ensure the safety of their staff and visitors. The museum’s commitment to regular testing and cleaning of its cooling towers underscores its dedication to maintaining a safe environment for everyone.

