Air conditioning is a lifesaver, but poor maintenance can cause bacteria to spread, leading to a recent outbreak of Legionnaires' disease.

Two people have died and more than 50 have been sickened by a Legionnaires' disease cluster in New York City, the city health department said on Monday, Aug. 4.

There are also steps people can take to reduce the risk of Legionnaires' disease at home. New York state health officials suggest draining garden hoses; following manufacturers’