Some in the area say they were unaware of the outbreak of Legionnaires' disease, let alone the location of problem sites.

Ninety-two people have been diagnosed with Legionnaire's disease since July 25 when the cluster of cases was first identified in Central Harlem, according to the latest numbers from the New York City Health Department.

Officials said Monday night there has been an uptick in cases in the Legionnaires' disease cluster in Central Harlem.

What are the symptoms of this type of pneumonia, called Legionnaires' disease, and how do you treat it? Here's what you need to know.