Sporadic Legionnaires' disease is frequently detected in commercial truck drivers. We report 2 sporadic cases of this disease in Barcelona, Spain, that occurred during December 2019 and September 2020. Laboratory findings were consistent with windshield wiper fluid without added screen wash as a possible source of infection for both cases.
Keywords: Barcelona; Legionella; Legionnaires’ disease; Spain; bacteria; commercial truck drivers; environmental exposure; occupational health; surveillance; vehicle; windshield wiper fluid.