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.

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.

There has been a third death in the Legionnaires' disease outbreak in New York City. Officials said the number of cases has grown to 67, including those three deaths. Legionnaires' is a severe form of pneumonia that doesn't spread from person to person,