A Legionnaires’ disease outbreak on Manhattan’s Upper East Side has grown to 14 confirmed cases, New York City health officials reported Sunday. The cases are linked to ZIP codes 10028, 10128, and 10075, which include neighborhoods such as Yorkville and Carnegie Hill. At least one patient lives, works, or recently visited the 10075 area.

Health officials are advising anyone who has spent time along the east side of Central Park between East 76th Street and East 97th Street since late June to watch for flu-like symptoms, including fever, cough, chills, and muscle aches. They urge individuals experiencing symptoms such as cough, fever, or difficulty breathing to contact a healthcare provider immediately.

The NYC Health Department is actively testing all cooling towers in the affected area as part of the investigation. New York City Mayor Zohran Mamdani stated that the outbreak is not linked to building plumbing or indoor air conditioning units. Residents can safely use tap water, bathe, shower, cook, and operate their air conditioning units at home.

NYC Health Commissioner Dr. [Name Not Provided] acknowledged the efforts of epidemiologists, water ecologists, community health workers, and other staff who have been working to keep the Upper East Side community informed and safe.

This outbreak follows a larger Legionnaires’ disease incident last summer in Central Harlem, which resulted in over 100 confirmed illnesses.

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