Legionnaires’ Disease Outbreak in New York: 59 Sick and 15 Hospitalized

• Legionnaires’ disease outbreak affects 59 people
• 15 patients remain hospitalized
• No deaths confirmed

A Legionnaires’ disease outbreak in Manhattan’s Upper East Side has sickened 59 people, according to the New York City Department of Health.

Of the identified patients, 15 remain hospitalized, while another 33 have been discharged after receiving medical treatment.

Health officials also reported that 11 additional people tested positive for the bacteria but did not require hospitalization.

So far, the Department of Health has confirmed that no deaths have been linked to the outbreak.

The public health investigation is focused on several cooling towers in buildings across the Upper East Side, where Legionella bacteria have been detected.

Authorities order immediate cleaning of contaminated cooling towers

Testing conducted by health officials detected genetic material from Legionella bacteria in cooling towers at several buildings in the affected neighborhood.

The positive findings came from PCR testing, which can detect genetic material from both living and dead bacteria.

Following these results, the Department of Health ordered immediate action to reduce the risk of additional exposure.

«Owners of all cooling towers with initial positive results must immediately drain, clean, and disinfect their cooling towers to reduce the risk of further exposure.»

Officials have not disclosed how many buildings tested positive or released the exact locations of the affected cooling towers.

In addition to PCR testing, health teams are conducting culture tests on all sampled cooling towers.

These tests will determine whether the bacteria are alive and capable of causing infection, with final results expected to take up to two weeks.

Meanwhile, officials continue monitoring the neighborhood for any new cases.

Health officials say tap water remains safe

The Department of Health emphasized that the bacteria were not found in the buildings’ plumbing systems.

As a result, residents can continue using tap water safely for drinking, bathing, cooking, and other daily activities.

«Residents can continue drinking tap water, bathing, showering, cooking, and using air conditioning in their homes.»

Officials stressed that Legionella is not transmitted by drinking water, preparing food, or using residential air-conditioning systems.

People typically become infected by inhaling tiny water droplets contaminated with the bacteria.

Poorly maintained cooling towers can release these contaminated droplets into the air.

The infection is also not spread from person to person.

Older adults and smokers face the greatest risk

According to the Department of Health, most people exposed to Legionella do not become ill.

Cases generally occur after significant or repeated exposure to contaminated water droplets.

People over the age of 50 are at greater risk of developing severe illness.

Smokers and individuals with heart disease or weakened immune systems are also considered especially vulnerable.

The bacteria can cause Legionnaires’ disease, a serious form of pneumonia whose symptoms may initially resemble the flu.

Common symptoms include:

• Fever
• Chills
• Cough
• Shortness of breath
• Muscle aches
• General fatigue or malaise

Health officials have not released details about the condition of the 15 hospitalized patients.

They also have not indicated whether any are in critical condition or belong to high-risk groups.

New York continues monitoring the Legionnaires’ disease outbreak

The Department of Health continues collecting samples while overseeing cleaning and disinfection efforts at the affected cooling towers.

Building owners are required to comply with public health orders to reduce the risk of additional exposure.

The course of the Legionnaires’ disease outbreak will depend on culture test results and whether additional cases emerge in the coming days.

Officials recommend that anyone experiencing flu-like symptoms seek medical attention, particularly if they are part of a high-risk group.

The department reiterated that residents may continue their normal daily activities and safely use water and air conditioning in their homes.

At this time, the outbreak has resulted in 59 confirmed cases, 15 hospitalizations, 33 recovered patients who have been discharged, and no confirmed deaths.

What is Legionnaires’ disease and what are its symptoms?

Legionella is a type of bacteria that can grow in water systems and cause Legionnaires’ disease, a severe form of pneumonia.

People become infected by inhaling tiny droplets of contaminated water from sources such as cooling towers, showers, decorative fountains, or hot tubs.

The illness is generally not contagious and cannot be contracted by drinking water, preparing food, or using household air-conditioning systems.

Symptoms typically appear between two and 14 days after exposure and may include:

• Fever
• Chills
• Cough
• Shortness of breath
• Muscle pain
• Headache
• Fatigue or general weakness

Adults over 50, smokers, and people with lung disease, heart conditions, or weakened immune systems are at the highest risk for serious complications.

As a precaution, anyone who develops fever, cough, or difficulty breathing should seek medical evaluation promptly, especially if they live, work, or recently visited the affected area.

It is also important to follow guidance from health authorities and avoid taking antibiotics without medical supervision, since proper diagnosis requires professional evaluation.

How can Legionnaires’ disease be prevented?

Preventing Legionnaires’ disease depends primarily on proper maintenance, cleaning, and disinfection of water systems where the bacteria can grow.

To reduce the risk, experts recommend:

• Keep hot tubs, showers, and faucets clean to prevent mineral buildup and sediment.
• Follow public health alerts and official guidance during an outbreak.
• Avoid using poorly maintained hot tubs, especially if the water appears cloudy or the facility seems unclean.
• Clean and disinfect household humidifiers according to the manufacturer’s instructions.
• Run water through faucets and showers that have not been used for an extended period.
• Seek prompt medical attention if you develop fever, cough, or shortness of breath, particularly if you are over 50, smoke, or have chronic health conditions.

For commercial and residential buildings, the most effective preventive measure is regular inspection, testing, cleaning, and disinfection of cooling towers and other water systems.

During the Upper East Side Legionnaires’ disease outbreak, officials emphasized that residents can safely drink tap water, cook, bathe, shower, and use home air conditioning because the contamination is not present in the buildings’ plumbing systems.

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SOURCE: EFE / CDC