Two patients with no exposure to gardening compost had related Legionella longbeachae infections in Quebec, Canada. Epidemiologic investigation and laboratory results from patient and soil samples identified the patients' workplace, a metal recycling plant, as the likely source of infection, indicating a need to suspect occupational exposure for L. longbeachae infections.
Keywords: Canada; Legionella; Legionella longbeachae; Legionnaires’ disease; bacteria; disease outbreaks; epidemiology; gram-negative bacteria; legionellosis; occupational diseases; workplace.