Fourth Death Reported in Upper East Side Legionnaires’ Outbreak

Lawsuit Planned After 88-Year-Old Air Force Veteran Died After His Illness Was Linked to Cooling Tower

UPPER EAST SIDE, MANHATTAN (July 21, 2026) – A fourth person has tragically died as the Legionnaires’ disease outbreak continues to spread across the Upper East Side, according to the NYC health department.

In total, 76 people have been diagnosed since the outbreak was first identified. A total of seven patients remain hospitalized.

There have also been four deaths linked to the outbreak. Affected ZIP Codes include 10128, 10028, and 10075. The disease can be treated.

But there’s also a roughly 10% fatality rate. Last year, seven people reportedly died after contracting the illness. Anyone that is experiencing pneumonia-like symptoms has been urged to seek medical attention.

The NYC Department of Health has required that numerous schools, nursing homes, and other commercial institutions clean their cooling towers.

Liability for Upper East Side Legionnaires’ Disease Outbreaks

Legionnaires’ disease is a severe form of pneumonia. It is contracted through inhaling small droplets of water that contain legionella bacteria. Property owners can face liability for illnesses caused by legionella bacteria if they failed to take appropriate measures to protect against it. If a property owner has actual or constructive knowledge that their water management system is unsafe, they must take action. What follows are some of the measures that can help prevent Legionnaires’ disease outbreaks.

• Water Temperatures: Property owners should maintain their hot and cold water at the CDC-recommended levels. Hot water should generally be stored about 140°F. Cold water should typically be stored below 77°F.
• Water Monitoring: Property owners should monitor disinfectant levels and the pH balance of their water.
• Testing: Property owners in New York City are required to test their cooling towers every 31 days for the presence of legionella bacteria.
• Decisive Action: Property owners should take decisive action if they receive a positive test for legionella bacteria in their cooling tower. They should also take measures to clean that cooling tower.

Establishing that one property or another is liable for a person’s Legionnaires’ disease requires preserving a lot of evidence. Among other things, all of the cleaning and testing records of the building where the incident took place should be sought. The medical records related to a person’s illness should be closely examined. Those records will typically need to be examined by a medical professional who can help link an illness to a specific location. Liability for any Legionnaires’ disease outbreak could extend to several parties aside from a property owner. This is partly because third-party contractors are typically the ones who are responsible for maintaining the water system at a commercial site.

Steps to Take After Contracting Legionnaires’ Disease

Legionnaires’ disease continues to be a major public health concern for New York City. According to NYC Health, “The rate of Legionnaires’ disease in NYC increased from 2010 to 2018, with a peak in 2018. Since 2018, rates have decreased and stabilized. In 2020, the COVID-19 pandemic caused many New Yorkers to stay indoors, wear masks and limit their access to health care services, which likely contributed to the reduction in people diagnosed with Legionnaires’ disease in 2020.” Multiple actions should be taken after a person contracts Legionnaires’ disease in NYC.

• Victims should seek medical treatment as early as possible. Failing to receive treatment could result in a prolonged illness and requires emergency care.
• Victims should preserve all of the medical documentation related to their illness. This documentation can help establish the extent of a person’s injuries.
• Victims should contact an experienced personal injury attorney. An attorney can examine the unique facts of their case and let them know what their legal options are.

Legionnaires’ disease can result in very severe illness, particularly for people who are older with pre-existing health conditions. It is largely preventable in many settings. Unfortunately, building owners may not be willing to pay for all of the expenses associated with consistent maintenance and inspection of their water system. When this happens, it puts everyone at risk. Any person who has sustained a serious illness or prolonged hospitalization from Legionnaires’ disease may be able to pursue some measure of accountability through a civil action.

Investigating New York City Legionnaires’ Disease Outbreaks

We at GLK Law extend our deepest condolences to all of the families who have lost loved ones in this Legionnaires’ Disease outbreak. There needs to be a thorough investigation into the source of the outbreak. This is the second year in a row where dozens of people have become ill. It is our sincere hope that steps are taken to address the root causes so that future outbreaks can be prevented.

Have you or a loved one died or become seriously ill after contracting Legionnaires’ disease? You may have legal recourse. Our team of personal injury attorneys is here for you. We are committed to helping victims get the support and justice that they are entitled to under the law. Whether you just have legal questions or need any type of support, we are here for you. You are always welcome to contact us anytime at (516) 908-9792.