Overview

• Officials linked patient samples to cooling towers at Harlem Hospital and a construction site at 40 West 137th Street through DNA sequencing.
• Health leaders said the Harlem cluster has ended and the investigation is closed, with no new cases reported since Aug. 13.
• The outbreak totals reached seven deaths and 114 confirmed infections as of Thursday, with six people still hospitalized.
• Twelve cooling towers across 10 buildings tested positive for Legionella, and emergency disinfection was completed by Aug. 15.
• Many affected towers lacked up‑to‑date testing or inspections, lawsuits have been filed, and a separate Bronx cluster was deemed unrelated.