Fulová M, Kotrbancová M, Bražinová A, et al. - Given that Legionnaires’ disease (LD) occurs predominantly in adults and elderly people and its incidence in Europe has been increasing in recent years, researchers described 5 LD cases in a children’s hospital in Slovakia, subsequent environmental investigation, control measures, and 5-year monitoring of Legionella colonization in hospital’s water system. They tested clinical specimens from 75 hospitalized patients in 2014–2019. Five Legionella infections in 2014–2015 were identified. Intensive care unit admission and artificial ventilation were required for all patients due to general deterioration and respiratory failure. Control measures have resulted in a lower risk of infection, but not in the eradication of Legionellae. The diagnosis of Legionella infection in hospitalized children with pneumonia, especially in hospitals with colonized water systems, must be expanded.