NYC’s Legionnaires’ Outbreak Is a Reminder to Look at the Entire Rooftop Environment
New York City's 2026 Legionnaires' disease outbreak has put cooling towers and rooftop mechanical systems back in the spotlight. It has been a serious public-health event. The outbreak began on Manhattan's Upper East Side in early July. The NYC Health Department ultimately ordered 76 buildings to clean and disinfect cooling towers after positive initial PCR
