The first death linked to a Legionnaires’ disease outbreak on Manhattan’s Upper East Side has been reported, with cases rising to 67 and 12 individuals hospitalized.
New York City health officials confirmed on Friday that the first fatality has occurred in connection with a growing outbreak of Legionnaires’ disease on the Upper East Side of Manhattan. The number of confirmed infections has now risen to 67, up from 63 reported just a day earlier.
“I am saddened to report that one person has died in connection with the Legionnaires’ disease community cluster on the Upper East Side,” stated Dr. Alister F. Martin, New York City Health Commissioner. “My deepest condolences are with their loved ones, and out of respect to their personal privacy, we will not be releasing any additional information on the individual.”
The outbreak has resulted in 12 individuals being hospitalized, according to city health officials. Investigators are tracing the source of the outbreak to Legionella pneumophila bacteria, which has been detected in 76 cooling towers across the Upper East Side and one on the Upper West Side. Buildings that tested positive, including the Solomon R. Guggenheim Museum, have been ordered to clean and disinfect their cooling towers.
Legionnaires’ disease is a severe form of pneumonia caused by Legionella bacteria, which naturally occurs in water but can proliferate in building water systems such as cooling towers. The illness can be effectively treated with antibiotics if diagnosed early.
Cooling towers, commonly found on rooftops, are essential for regulating large building cooling systems and can release mist containing the bacteria. Health officials have emphasized that the outbreak is not linked to New York City’s drinking water or indoor air conditioning systems.
Officials are urging anyone who lives, works, or has visited the affected area since late June to seek medical attention immediately if they develop flu-like symptoms. Symptoms typically manifest between two to 14 days after exposure and may include fever, cough, shortness of breath, muscle aches, and headaches. It is important to note that the disease spreads through contaminated water droplets and is not transmitted from person to person.
Older adults, smokers, and individuals with chronic lung diseases or weakened immune systems are at the highest risk for severe illness. According to the Centers for Disease Control and Prevention, approximately 1 in 10 people diagnosed with Legionnaires’ disease die from complications associated with the illness.
City health officials have reiterated that early diagnosis and prompt treatment with antibiotics can significantly improve outcomes for patients who become infected.
For further details, refer to the New York City Department of Health and Mental Hygiene’s updates on the situation.

