New York City has declared the deadly Legionnaires' disease outbreak in central Harlem over, nearly three weeks after it began. City health officials announced on Friday that no new cases have been reported among residents who live or work in the area since 9 August. The outbreak resulted in 114 cases, 90 hospitalisations, and seven deaths, with six patients still in hospital.
Mayor Eric Adams stated: 'Today marks three weeks since someone with symptoms was identified, which means New Yorkers should be able to breathe a sigh of relief that residents and visitors to central Harlem are no longer at an increased risk of contracting Legionnaires' disease – but our job here is not done.' He emphasised the need to learn from the incident and implement new steps to improve detection and response to future clusters.
The disease, a serious form of pneumonia caused by legionella bacteria, can spread through water systems such as showerheads, cooling towers, and hot tubs. Health officials traced the bacteria to cooling towers atop a city-run Harlem hospital and a nearby construction site. All facilities with positive test results have since been cleaned and disinfected.
Acting Health Commissioner Michelle Morse expressed condolences to affected families and said the city is working with building owners to protect health and prevent future outbreaks. The Adams administration has proposed new measures, including more frequent testing of cooling towers and expanded inspection capacity for the health department.



