Upper West Side building reports Legionella in hot water as NYC outbreak intensifies

In the wake of a Legionnaires' disease outbreak centered on Manhattan's Upper East Side, the NYC Health Department ordered 31 cooling towers to be drained and disinfected after positive Legionella PCR results, while 12 more buildings faced remediation timelines; separately, a building on the Upper West Side—the Ardsley on Central Park West—independently detected Legionella in its hot water system and will address it, as investigators continue to determine which cooling tower triggered the outbreak.