- Gram negative rod
- Ingestion of raw/uncooked dairy or handling infected animals
- Veterinarians
- Meat packers
- Slaughter house workers
- Regions: Middle East, Mediterranean, Mexico, Africa
- Causes weeks/months of recurrent: Fever, chills, sweats, arthritis, adenopathy, testicular pain, hepato-splenomegaly
- Testicular pain and swelling
- Hepato-splenomegaly