Public health officials are investigating two cases of Legionnaires’ disease in patients who were possibly exposed to the bacteria while at Chicago's Mercy Hospital, according to an article on the NBC Chicago website.
The Illinois and Chicago departments of public health are evaluating the building’s water system for possible Legionella bacteria in order to determine its source.
The hospital is working with the health departments to strengthen its water management practices, officials said.
Mercy has begun flushing its water system, and will alter or replace water fixtures and place filters on sinks.
5 Reasons Engineering is the Edge in Healthcare Master Planning
Building an AI-Ready Healthcare Facility 
Family Medical Associates of Raleigh Reports April 2026 Data Breach
Every Detail Matters: A Patient's Story of Healing, Hope and Healthcare Facilities
Geisinger Wyoming Valley Medical Center Tops Off New 11-Story Tower