PLE-3619

A 50-year-old man develops non-bloody, watery diarrhea while working as an aid worker in a refugee camp in Cambodia. He arrived in the area 3 days ago. A stool smear shows no WBCs but revealed a gram-negative, curved bacilli, which is oxidase positive. He subsequently develops dehydration and electrolyte abnormalities, leading to cardiac and renal failure. Which of the following organisms is the most likely cause of this man’s enterocolitis?