A 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.

Officials say the Legionnaires disease outbreak in Harlem is contained, but are still telling residents to watch for systems as they clean cooling systems in the area.

The disease is a type of pneumonia caused by the bacteria Legionella, which grow in warm water and can spread in building water systems such as showerheads.