Humans become infected by direct or indirect contact with animals or with contaminated animal products (including unpasteurised milk and dairy products) or by the inhalation of aerosols.
Ljudje se okužijo ob neposrednem ali posrednem stiku z živalmi ali z okuženimi živalskimi izdelki (vključno z nepasteriziranim mlekom in mlečnimi izdelki) ali z vdihavanjem aerosolov.