Legionnaires' disease outbreak in NYC grows as Harlem leaders urge people to be cautiouskyle5934Aug 7, 20250 min readwww.cbsnews.comLegionnaires' disease outbreak in NYC grows as Harlem leaders urge people to be cautiousA deadly Legionnaires' disease outbreak in New York City has set health and community leaders on a campaign to educate the public on ways to prevent the bacteria from growing and spreading.