Legionnaires' Bacteria Found in Nyc's Cooling Towers, 60 Infected
WHO:
NY Post - The Met, Chapin School, Spence School, and Dalton School are among the buildings ordered to remediate their cooling towers.
CNN - Dr. Alistair Martin is the commissioner of the New York City Department of Health and Mental Hygiene.
WHAT:
NY Post - The number of buildings testing positive for Legionella bacteria has increased to 76.
CNN - The city’s Department of Health and Mental Hygiene reported that 15 people are currently hospitalized, and 34 have been discharged from the hospital.
CNN - The health department has tested 183 cooling towers identified as potential sources of bacteria.
CNN - Dr. Alistair Martin stated, “Seventy-six buildings we know is a significant number, but we knew that that list would be long."
CNN - No deaths have been reported in connection with the 60 confirmed cases of pneumonia caused by Legionella bacteria.
CNN - The city’s Department of Health and Mental Hygiene has identified a cluster of cases in three particular ZIP codes: 10128, 10028, and 10075.
CNN - The incubation period for Legionnaires’ disease is two to 14 days, meaning more illnesses could still emerge.
CNN - 60 cases of pneumonia caused by Legionella bacteria have been confirmed.
CNN - 15 people are currently hospitalized, and 34 people have been discharged from the hospital.
CNN - The city’s Department of Health and Mental Hygiene has tested 183 cooling towers identified as potential sources of bacteria.
CNN - Owners of 76 buildings have been directed to drain, clean, and disinfect their cooling towers.
CNN - 57 building owners have confirmed completion of the required remediation, while 19 buildings must complete it by Thursday.
WHERE:
Patch - Officials released the addresses of 45 buildings newly added to the list of those testing positive for Legionella, including several private schools and the Metropolitan Museum of Art.
CNN - The outbreak is occurring on the Upper East Side of New York City.
CNN - The affected ZIP codes are 10128, 10028, and 10075.
WHEN:
CNN - The deadline for the remaining 19 buildings to complete remediation is Thursday.
WHY:
CNN - The outbreak is believed to be tied to bacteria found in cooling towers.
HOW:
CNN - Public health officials are conducting additional tests to distinguish between live and dead bacteria, which could take several weeks.
CNN - Cooling towers expel building heat into the atmosphere by pulling outside air through warm water, which can become contaminated with Legionella bacteria.
CNN - Public health officials are conducting additional tests to pinpoint the outbreak's origin and distinguish between live and dead bacteria.
(UPDATED July 15, 2026 10:31 UTC)
The number of buildings testing positive for Legionella bacteria has risen to 76, according to the city's Department of Health and Mental Hygiene. Currently, 15 people are hospitalized while 34 have been discharged, and health officials have tested 183 cooling towers identified as potential sources of the bacteria. Among the 45 newly added locations are several private schools and the Metropolitan Museum of Art, highlighting the widespread nature of this health concern.
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(UPDATED July 15, 2026 05:46 UTC)
Health officials have confirmed 60 cases of pneumonia caused by Legionella bacteria, but thankfully, no deaths have been reported. The city's Department of Health and Mental Hygiene has identified a cluster of these cases in the ZIP codes 10128, 10028, and 10075, and the incubation period for Legionnaires’ disease ranges from two to 14 days, indicating that more illnesses could still arise. To address the situation, public health officials are conducting additional tests to differentiate between live and dead bacteria, a process that may take several weeks.
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(UPDATED July 15, 2026 03:56 UTC)
An outbreak of pneumonia caused by Legionella bacteria has been confirmed in New York City, with 60 cases reported and 15 individuals currently hospitalized. The city's Department of Health and Mental Hygiene has tested 183 cooling towers identified as potential sources, and owners of 76 buildings have been ordered to drain, clean, and disinfect their cooling towers, with a deadline for the remaining 19 buildings to complete remediation set for Thursday. Public health officials, led by Commissioner Dr. Alistair Martin, are conducting further tests to determine the outbreak's origin and differentiate between live and dead bacteria, particularly in the affected Upper East Side ZIP codes of 10128, 10028, and 10075.