New York City health officials have initiated an investigation into a cluster of Legionnaires’ disease cases that has emerged in the Carnegie Hill and Yorkville neighborhoods of Manhattan. As of Thursday, two individuals have been diagnosed with the illness, a potentially fatal form of pneumonia, with additional suspected cases awaiting test results.
Investigation Underway
The New York City Health Department is actively working to identify the source of the outbreak. Authorities are requesting that New Yorkers who have lived, worked, or visited the Upper East Side area since late June contact their healthcare provider if they experience flu-like symptoms such as fever, cough, or difficulty breathing. While Legionnaires’ disease is not contagious, it can be fatal if not treated promptly with antibiotics.
Certain populations are at higher risk, including individuals aged 50 and older, cigarette smokers, and those with chronic lung conditions or compromised immune systems. The bacteria responsible for Legionnaires’ disease, Legionella, typically spreads through contaminated water supplies. It can thrive in various water systems, including plumbing, cooling towers, whirlpool spas, hot tubs, humidifiers, and condensers within large air conditioning systems.
Preventative Measures and Public Safety
As part of the investigation, health officials plan to sample and test cooling towers throughout the affected area. Building owners will be required to undertake full remediation if any cooling towers are found to be positive for Legionella bacteria. Despite the current outbreak, officials emphasize that it remains safe to use air conditioners, cooling centers, and city facilities, which are crucial during the ongoing extreme heat wave.
Doctors have also been alerted and asked to remain vigilant, promptly reporting any potential cases to the health department. There have been no reported deaths associated with the current cluster of cases in Manhattan.
Previous Outbreak Recalled
This investigation follows a significant Legionnaires’ disease outbreak in Harlem last summer, which affected 114 people, led to 90 hospitalizations, and resulted in seven fatalities. During that period, concerns were raised by Rev. Al Sharpton and lawyer Ben Crump, who suggested that the number of deaths might have been higher than officially reported due to misdiagnoses.
Helene Elliott is the senior reporter for News Raise. She covers Science news. She also has a keen interest in photojournalism. Helene holds a nomination for the prestigious Red Smith Award. She is married to author Dennis D’Agostino, a former publicist with the New York Mets.




