New York City Council members are criticizing Mayor Zohran Mamdani's administration for its handling of recent Legionnaires' disease outbreaks, pointing to a lack of urgency, transparency, and adequate staffing following two deadly clusters of the bacterial illness.
An outbreak in Harlem last year infected 118 people and resulted in seven deaths. In response, the City Council voted to triple the frequency of required testing for Legionella in building cooling towers, increasing it from quarterly to monthly. However, less than a year later, a new outbreak on Manhattan's Upper East Side has infected at least 74 people, with four deaths and seven individuals still hospitalized.
Council members assert that despite the strengthened law, the administration failed to implement reforms with the necessary speed and leadership. They also highlighted failures beyond testing frequency, including a lack of prompt disclosure from the Health Department regarding buildings that tested positive for Legionella and insufficient guidance for residents in affected neighborhoods.
"Worse yet, the city missed critical opportunities to prevent additional infections," stated one council member. "I repeatedly called on the Health Department to proactively disinfect cooling towers throughout the affected area while investigators worked to identify the precise source of the bacteria, to no avail. Instead, the department chose to wait — and the crisis spread."
Communication breakdowns between the Health Department and city hospitals were also noted. Elected officials reportedly learned of the second death related to the Upper East Side outbreak through news reports, and Health Department officials indicated they had also first heard of the death via media, requiring hours to verify the information.
Compounding these issues is a significant staffing shortage within the Health Department. The department has at least 20 vacancies for water ecologists, the staff responsible for acting on positive Legionella findings, representing more than a third of the necessary workforce. The union representing these staffers has urged the administration to address this gap.
In response to these failures, the City Council is introducing new legislation. This will establish a dedicated summer hotline for real-time outbreak information, strengthen requirements for public notification and education, and mandate city action on buildings non-compliant with cooling-tower inspection rules. The council also plans to hold an oversight hearing in September to examine the administration's response.
The council aims to learn from these recent outbreaks to better prepare for future public health emergencies, emphasizing that public trust relies on timely, transparent communication and decisive action.