One person is dead and at least 22 people have become sick from a Legionnaires’ disease cluster in New York City since last Friday, health officials said.

New York City officials said they are investigating a cluster of Legionnaires' disease that has caused one death and nearly two dozen illnesses.

Legionnaires' disease can be fatal, especially for older adults, smokers and those with weakened immune systems.

New York City health officials are currently dealing with a cluster of Legionnaires' disease that has infested at least 22 people and caused one death. The outbreak is concentrated in the neighborhood of central Harlem,

The NYC Health Department issued its latest update on the outbreak Wednesday, following its first report last week. Since July 25, there have been 22 cases of Legionnaires’ disease diagnosed throughout the area,

The illness caused a mysterious outbreak at the 1976 American Legion convention at the Bellevue Hotel in Center City.

In just one week, a Legionnaires’ disease cluster in Harlem, New York City, has left at least 22 people sick and one dead. The New York City Health Department advised that "people who have been in the affected area since late July with flu-like symptoms,