An outbreak of Legionnaires’ disease in Manhattan’s Upper East Side has resulted in five deaths, according to the city’s health department. The most recent death occurred on Tuesday, marking the fifth consecutive day that a fatality was reported from the illness. Health officials have confirmed that 82 people have been infected with the disease since early July.
The bacteria responsible for the outbreak, known as Legionella, thrive in warm and stagnant water environments such as cooling towers used in large buildings. City health workers tested dozens of these systems and found live bacteria in 34 cooling towers across 33 buildings on the Upper East Side. Some towers tested negative, while results are still pending for 140 others.
The presence of multiple sources suggests that maintenance practices may not have been consistent across affected buildings. Buildings with confirmed positive tests were required to clean and disinfect their cooling systems before the final test results came in. Officials said these actions were taken quickly to reduce further spread.
The city’s health commissioner, Dr. Alister Martin, stated that aggressive testing and remediation efforts had likely eliminated the source of exposure. He added that the department would continue inspecting all towers that tested positive and enforcing public health laws strictly.
One of those who died was an 88-year-old man named Robert Goldstein, a retired businessman and Air Force veteran. His widow said she watched him suffer on life support and plans to sue the owner of the building where he became sick. She believes the cooling tower in that building contributed to the outbreak.
City Council Speaker Julie Menin criticized the city’s response, saying that more proactive disinfection could have prevented additional deaths. She argued that waiting for test results before cleaning towers delayed necessary action. However, city officials said such a delay would make it harder to identify the exact source of infection.
The city has focused its efforts on identifying and remedying buildings with cooling towers that tested positive for Legionella. At least 76 buildings were found to contain the bacteria and were ordered to clean their systems. These included well-known institutions like the Guggenheim Museum, the Metropolitan Museum of Art, and a luxury apartment building designed by a prominent architect.
Legionnaires’ disease is a form of pneumonia caused by inhaling water droplets contaminated with Legionella bacteria. Symptoms include fever, chills, muscle aches, shortness of breath, and coughing. It does not spread from person to person but can be fatal in about 10% of cases.
The outbreak follows a similar incident last year in Harlem that killed seven people and sickened over 100. City officials believe the current situation is under control after no new cases were reported for six days and no new symptoms appeared in more than ten days.
Mayor Zohran Mamdani said he was deeply saddened by the loss of life and expressed condolences to families affected. He also reassured residents that tap water, showers, and air conditioning systems are safe to use at home. Health officials continue to monitor all buildings with cooling towers in the area.
The city’s health department emphasized that most people exposed to the bacteria do not become ill, but those over 50 or with weakened immune systems are at higher risk. The disease typically develops within two to 14 days after exposure.
Public health experts have noted that the outbreak was contained through prompt testing and cleaning of affected towers. Officials said they will review current policies and procedures to prevent future clusters from happening.
The city has also reminded residents in certain zip codes to seek medical attention if they experience flu-like symptoms such as cough, fever, or difficulty breathing. The health department is continuing its inspection efforts and holds building owners accountable for maintaining safe conditions.
IMAGE: Transmission electron microscopy image of L. pneumophila, responsible for over 90% of Legionnaires’ disease cases CDC Public Domain
This article passed automated originality and source-verification checks before publishing.