In 2015, Legionnaires' disease was diagnosed in a street cleaning worker. We found Legionella pneumophila serogroup 1 in the water and internal foam from the tanks of 2 trucks used by the worker during the incubation period. The internal foam was removed, and a Legionella prevention program was implemented.
Keywords: Barcelona; Legionella; Legionella pneumophila; Legionnaires’ disease; Spain; bacteria; environmental exposure; foam; molecular typing; occupational health; pneumonia; street cleaner; truck.