What the Health Department ConfirmedA sixth person has died in the Legionnaires' disease outbreak on Manhattan's Upper East Side, New York City Health Commissioner Dr. Alister Martin announced on the evening of July 28. The Health Department's Legionnaires' disease outbreak page was last updated July 22 and still listed 84 cases and five deaths at the time of writing. The Health Department publishes the address list of culture positive towers and updates it as results return. July 22, 2026: Health Department outbreak page updated with 84 cases, five deaths, and 51 culture positive cooling towers at 50 buildings. July 10, 2026: Health Department releases its preliminary list of buildings ordered to clean and disinfect cooling towers.