NYC Declares Upper East Side Legionnaires' Outbreak Over
CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins78% CONFIDENCEOverall confidence: 78%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or betterNYC[1][5] Health press release dated 31 July 2026 declaring the cluster's exposure ended; counts (92 cases, 7 deaths) are as stated that day.
On 31 July 2026 NYC's Health Department declared the Upper East Side Legionnaires' cluster over, with 92 confirmed cases, 79 hospitalizations and 7 deaths, after 83 buildings cleaned their cooling towers.
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