The death toll in New York City‘s legionnaires’ outbreak has risen once again, bringing the total number of victims to four.
As of July 20, 76 residents in NYC’s Upper East Side neighborhood have tested positive for Legionnaires’ disease, a severe form of pneumonia spread through contaminated water vapor that kills one in ten patients. This is up from 63 last week.
Hospitalizations, however, have decreased from 12 to seven. A total of 53 people have been discharged from the hospital, according to the New York City Health Department.
No details have been released about any of the patients who have been infected, hospitalized or died in the outbreak.
As of last week, 76 buildings had been identified as potential sources of Legionella bacteria, which causes Legionnaires’ disease.
The health department said it will continue inspecting every cooling tower that tested positive.
‘We believe we have now eliminated the source of exposure. Regardless, we will continue to inspect cooling towers and aggressively enforce health laws,’ Mayor Zohran Mamdani said.
‘I’m heartbroken by the loss of my fellow New Yorkers and send my deepest condolences to their loved ones.’

Cooling towers and air conditioning units are seen in the Harlem neighborhood of Manhattan last year amid a Legionnaires’ disease outbreak in the area
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The sites on the list of buildings span zip codes 10128, 10029, 10075 and 10028, which are located in the Upper East Side, Yorkville and Carnegie Hill areas of Manhattan.
Officials originally identified 10075, 10028, and 10128 as potential hot spots, as almost all the patients live, work or had recently visited those areas.
Of note among the buildings is The Metropolitan Museum of Art, The Spence School – a private school that costs nearly $70,000 a year, the Guggenheim Museum, a building with a Whole Foods Market at the street level, Gracie Towers – a residential building across the street from the New York City mayor’s official residence – and a fitness facility.
As of July 20, cleaning has been completed in all 76 buildings listed.
‘I want to reassure New Yorkers they can use tap water, bathe, shower and cook and use air conditioners at home,’ Mamdani said.
The first known case in the area was reported on June 27 and an outbreak was suspected earlier this month as additional cases were reported.
Legionnaires’ disease is caused by the Legionella bacteria that thrives in warm and damp locations. It can become airborne in water vapor and then be breathed in by people, potentially triggering an infection.
Common sources for the Legionella bacteria include centralized air conditioning systems, hot tubs, water fountains and large building plumbing systems.
The disease does not spread from person to person.
Infected patients initially suffer from a headache, muscle aches and fever, before the disease also triggers a cough, shortness of breath, chest pain, nausea, vomiting, confusion or other symptoms.
In severe cases, patients can suffer from severe pneumonia and the potentially fatal complication sepsis, when the bacteria spreads to the blood.
‘Any New Yorkers who currently live or work in this area or people who have visited the area since late June and are experiencing flu-like symptoms, such as cough, fever, or difficulty breathing should contact a health care provider immediately,’ the health department said.
Over the weekend, attorney Ronald Katter, who represents an 88-year-old man who died of Legionnaires’, said the victim’s wife had found him suddenly ill.
‘It wasn’t as if he had an acute illness that he was suffering for. He was sitting in his apartment by an open window and reading a magazine, and when she came home, he had a 104-degree fever,’ Katter said.
Doctors can treat the disease using antibiotics but note these drugs are most effective during the early stages of the disease and before its spread in the body.

Of note among the buildings that have tested positive for the presence of the type of bacteria that causes Legionnaires’ disease is The Metropolitan Museum of Art

As of July 20, there have been 76 cases of Legionnaires’ in the current outbreak. Seven people are hospitalized and four have died
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Those who are over 50 years old, smoke or vape, have a chronic lung disease or a weakened immune system are at higher risk from the bacteria.
Nationwide, infections with Legionnaires’ disease have soared over the last two decades, rising from about 1,100 cases in 2000 to more than 8,000 today.
New York City records between 300 and 600 cases every year, according to data from the city’s health department.
In August last year, seven people died and 114 people were sickened by a Legionnaires’ disease outbreak in Harlem. Ninety people were hospitalized.
Health officials linked that outbreak to the bacteria in 12 cooling towers across 10 buildings, including a city-run hospital and sexual health clinic.
About 90 percent of those infected had underlying risk factors, including being over 50 years old, being a smoker or having a chronic lung disease.

