By Michele Evans / NYweeklyRecord.com / Date: 9/13/2026
Category: Public Health / Building Safety / Government Accountability / The Bronx
NEW YORK CITY, NY –
A fatal Legionnaires outbreak in the South Bronx has exposed gaps in the public testing record for cooling towers that city law requires building owners to check every month.
Five people in parts of Melrose and Morrisania had been diagnosed as of September 10, according to the New York City Health Department. One person died. Additional possible cases were awaiting confirmation.
Gothamist reviewed city data and found six cooling towers at five buildings without a recent monthly Legionella test on file in the weeks before the outbreak. The affected ZIP codes, 10451 and 10456, contain 38 active cooling towers across 26 buildings, according to the outlet’s analysis.
The missing records do not establish that the towers went untested. Some equipment may have been inactive, and a test may have occurred without appearing in the public dataset. There is also no evidence that any of the five buildings caused the outbreak.
Those limits matter because identifying a source requires laboratory testing and epidemiological work. Still, the record gaps leave city officials and building owners with immediate questions about compliance, enforcement and public warning.
City law requires monthly testing during the operating season. Gothamist found that two buildings last reported results on June 30, one building last reported on August 4 and two other sites showed no monthly result in the available data. The properties include a day care center, a parking garage, a federal office building and a retail complex.
None of the owners or managers responded to Gothamist’s requests for comment. The Health Department did not answer the outlet’s questions before publication about whether it knew of the missing records.
The city’s own inspection coverage was incomplete in the latest available snapshot. Seven of the 38 towers had not received an annual city inspection as of mid-June, the analysis found. Health officials said they had inspected 82 percent of the towers in the affected area during the previous year.
The Health Department said all cooling towers in the outbreak area have now been sampled. It plans to inspect each tower for compliance and order full cleaning and disinfection for any system that tests positive for Legionella bacteria.
Health Commissioner Dr. Alister Martin said outreach workers were distributing multilingual information in the neighborhood. A Bronx resident told Gothamist he had not heard about the cluster and wanted the city to notify residents sooner.
Legionnaires disease is a severe form of pneumonia caused by inhaling mist contaminated with Legionella bacteria. It is not contagious and can be treated with antibiotics when caught early. People who live, work or recently visited the affected area should seek medical care for fever, cough or difficulty breathing, especially if they are older than 50 or have chronic health conditions.
This is the city’s second deadly Legionnaires cluster this summer. The earlier Upper East Side outbreak killed 11 people, according to Gothamist. That history puts added pressure on the Health Department to explain how it monitors compliance between outbreaks and how quickly it acts when test records disappear.
Citywide inspections increased during the first half of 2026, with nearly 1,600 towers inspected, the department told Gothamist. That was 35 percent more than the same period in 2025, when budget cuts and staffing shortages helped drive inspections near a record low.
More inspections do not resolve the current gaps. The city has not publicly identified the outbreak source, said whether owners with missing records were fined or explained how it verifies that every operating tower submits monthly results.
The immediate job is to find and disinfect contaminated equipment. The accountability job is to determine why required records were absent, whether inspections were timely and what enforcement will prevent another gap after the outbreak ends.
Sources
NYC Health Department: Investigating Legionnaires cluster in the Bronx
Gothamist: Five Bronx buildings had no recent record of monthly testing
Healthbeat: NYC officials examine cooling towers amid Bronx outbreak
Leave a Reply