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. Health leaders hit the streets of Harlem for a third straight day Friday with fliers urging people to take precautions as the number of infections continues to rise.

NYC Health said the Legionnaires' disease outbreak in Central Harlem is now up to 73 cases, including 3 deaths, an increase of 15 cases and one fatality since Monday. Anyone in Central Harlem experiencing flu-like symptoms should seek medical care, NYC Health said, although the risk to most people is low.

Adults who have been in the affected area since late July with flu-like symptoms, fever, cough or difficulty breathing should seek immediate medical attention, health officials say.