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Legionnaires' Deaths Climb to Nine on Upper East Side
15 Aug
Summary
- Nine individuals have died from Legionnaires' disease in an Upper East Side outbreak.
- The outbreak saw 92 known cases, with no new reports in over three weeks.
- Legionella bacteria were found in 77 cooling towers, including at major museums.

The death toll from a severe Legionnaires' disease outbreak on New York City's Upper East Side has tragically risen to nine. Health officials announced two additional fatalities, bringing the total number of known cases to 92. The first infections in this cluster were identified on July 2.
Officials believe the outbreak has been contained, as no new cases have been reported in more than three weeks. However, a significant finding was the presence of Legionella bacteria in 77 cooling towers across 160 buildings screened in the neighborhood. Notable locations included the Guggenheim Museum and the Metropolitan Museum of Art.
All affected buildings were mandated to undergo remediation, including cleaning and disinfecting their cooling towers. While the bacteria can cause a severe form of pneumonia, it is contracted by inhaling contaminated water vapor and is not spread person-to-person. Most people exposed do not become ill, but the disease is most dangerous for those over 50 or with compromised immune systems. The health department has assured residents that showering, tap water, and air conditioners remain safe to use.