The most common mode of transmission of brucella is
The organism from the infected animal enters the human body by direct contact. Through the wound, the conjunctiva, by inhalation or by ingestion of products from infected animals. The incubation period is usually about 10-30 days, but may sometimes be very prolonged. Ref: Textbook of microbiology; Ananthanarayana and paniker's; 10th edition; Pg: 346
Direct contact
Ingestion of raw milk
Air borne
Man to man
Bacteriology