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Legionella Outbreak in NYC Claims Third Victim

other · 2026-07-22

A Legionnaires' disease outbreak in New York City's Upper East Side has caused a third death, with 74 confirmed infections and 59 hospitalizations. Health Commissioner Alister F. Martin expressed condolences. The outbreak is stabilizing, with new cases dropping to about one per day between July 10-17, down from over eight daily earlier in July. No recent symptoms have been reported for over a week, suggesting the contamination source has been eliminated. The bacteria was found in 76 cooling towers in the Upper East Side and one in the Upper West Side; all positive systems were cleaned and disinfected by July 16. The outbreak has renewed debate on oversight of cooling towers, as over 250 towers received violations since last year, most in Manhattan. A similar outbreak in Harlem in 2025 caused five deaths and 114 infections.

Key facts

  • Third death confirmed in NYC Legionnaires' disease outbreak
  • 74 confirmed infections, 59 hospitalizations
  • Eight patients remain hospitalized
  • New cases dropped to about one per day between July 10-17
  • No recent symptoms for over a week
  • Bacteria found in 76 cooling towers in Upper East Side and one in Upper West Side
  • All positive towers cleaned and disinfected by July 16
  • Over 250 cooling towers received violations since last year, most in Manhattan

Entities

Institutions

  • New York City Department of Health
  • New York City Health Department

Locations

  • New York City
  • Upper East Side
  • Carnegie Hill
  • Yorkville
  • Upper West Side
  • Manhattan
  • Harlem

Sources