Gram ⊝, oxidase ⊕. Comma-shaped rod with polar flagella. Grows at 42°C.- Reservoir: Intestinal tracts of humans, cattle, sheep, dogs, cats, poultry- Transmission: Fecal-oral transmission through person-to-person contact or via ingestion of undercooked poultry or meat

Disease:- Major cause of bloody diarrhea, especially in children- ≥10 stools/day- Abdominal pain, fever, malaise, nausea, and vomiting- Generally self-limiting in 3-5 days

Complications: antecedent to Guillain-Barré syndrome (ascending muscle weakness) and reactive arthritis