When it comes to Legionnaires' disease, this doctor explains how buildings can prevent it and what symptoms to watch for an early diagnosis.

Inspections for the Legionella bacteria in New York City’s cooling towers sank to a record post-pandemic low in the months leading up to an outbreak of the disease in East Harlem that has so far killed three people, according to a Gothamist analysis of publicly available health data.

The source of the illness has not been conclusively identified more than a week after people began getting sick.