Legionnaires' outbreak in Harlem claims a fourth life, with 99 infected and linked to contaminated water-cooling towers.

The deadly Legionnaires’ outbreak gripping Harlem has city officials in hot water — as locals accused them Friday of dropping the ball on life-saving inspections and needlessly slow-walking revealing exactly where the disease hit.

An elderly Sebastopol man has died after contracting Legionnaires’ disease, a serious form of pneumonia caused by the Legionella bacteria, Sonoma County health officials said Friday morning.

New York City health officials are expected to give an update Thursday on the deadly outbreak of Legionnaires’ disease in Harlem that has killed three people and sickened nearly 100 since late July, as the latest patient counts suggest the numbers may be leveling off.

Harlem faces a Legionnaires' disease outbreak alongside steep Medicaid cuts, causing concern for health support and funding among residents and local organizations.