Legionnaires’ disease outbreak: 28 New Yorkers now sick as city expands public health response to Upper East Side crisis

A Legionnaires’ disease outbreak has sickened 28 New Yorkers, with 21 hospitalized, as the city expands its public health response on the Upper East Side. Mayor Zohran Mamdani and the NYC Health Department announced measures to release addresses of buildings with Legionella-positive cooling towers and mandate their remediation. The outbreak is contained to ZIP codes 10028, 10128, and 10075, with no deaths reported so far.