How is Legionnaires’ Disease Transmitted? Who Is Affected?

Table of Contents Legionnaires’ Disease: Symptoms, Causes, and Treatment Legionnaires’ disease is a severe pneumonia caused by the Legionella bacteria, which thrive in contaminated water systems. Since the first outbreak in Philadelphia in 1976, the illness has been recognized as a serious global health threat, particularly in hotels, hospitals, cruise ships, and public buildings where […]