Cases of Legionnaires’ disease in NYC increase to 90 as city health authorities suggest new cooling tower regulations

Legionnaires’ Disease Cases Rise in New York City

Health officials in New York City are reporting a rise in Legionnaires’ disease cases in Central Harlem, with the total now at 90, which sadly includes three fatalities.

This update follows the city’s health department’s proposal for new regulations aimed at testing cooling towers, suspected to contribute to the outbreak.

Cooling towers, typically found on rooftops, release mist while cooling large buildings. When the water becomes stagnant or poorly maintained, it can foster the growth of Legionella bacteria, which can then infect individuals who inhale the mist.

A spokesperson from the Department of Health indicated to CNN that these proposed regulations were actually in development prior to the current Legionnaires’ situation in Central Harlem.

According to New York City law, building owners are required to register their cooling towers and have them regularly inspected for compliance. The new proposal would mandate specific testing schedules and allow only state-certified labs to conduct testing. Additionally, it outlines penalties for those who fail to comply, but the specifics on fines were not provided. Currently, noncompliant building owners may face fines ranging from $500 to $2,000.

However, enforcing these new measures could be challenging. Data reveals that inspections conducted by the city hit a record low in 2024, with less than half the number carried out compared to 2017, the first year for which inspection figures were recorded. This decline was previously highlighted by Gothamist.

The current Legionnaires’ outbreak was first reported on July 25. Health officials stated that all cooling towers in the vicinity have been tested, and those found positive for Legionella were ordered to undergo cleaning. The department confirmed that these cleaning procedures were completed.

Legionnaires’ disease manifests with flu-like symptoms, including cough, fever, headaches, muscle aches, and shortness of breath. While treatable with antibiotics, failure to address it can lead to severe complications like shock and multi-organ failure. According to the World Health Organization, around 10% of individuals who contract the disease unfortunately die from its complications, with older adults and those with weakened immune systems facing higher risks.