Health & Environment The story so far
The Upper East Side Legionnaires' cluster - Jul 31, 2026 A seventh person died in the Upper East Side Legionnaires' outbreak, which has sickened 92 people since July 2, the same week East Village tenants at Haven Plaza, whose water system also tested positive for Legionella, saw remediation begin more than two and a half months after the city's initial order.
- Aug 1, 2026 City health officials declared the Upper East Side Legionnaires' outbreak over after a seventh death and 92 confirmed cases since July 2, saying the likely single-cooling-tower source has been eliminated and no new cases have been diagnosed since mid-July.
- Aug 8, 2026 The New York Hotel & Gaming Trades Council filed a health department complaint after a cooling tower at the High Line Hotel in Chelsea tested at 170 colony-forming units of Legionella per milliliter, above the city's 10 cfu/mL disinfection threshold, with a July 23 retest coming back at 700 cfu/mL, Gothamist reported. The health department confirmed it is investigating the four-star hotel, a week after the city declared the Upper East Side Legionnaires' outbreak over.
- Aug 15, 2026 Two more people died in the Upper East Side Legionnaires' outbreak, city health officials confirmed Friday, pushing the toll to nine and surpassing last year's Harlem outbreak's seven deaths. Officials said the contaminated cooling tower has already been eliminated but had not confirmed which tower caused the outbreak, with 92 people diagnosed since early July and one patient still hospitalized.
What’s nextCouncil Speaker Julie Menin's September oversight hearing on both outbreaks and citywide cooling-tower management, and whether the health department confirms the Legionella strain and orders remediation at the High Line Hotel's cooling tower.
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