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A 45-year-old man with diabetes mellitus presents to the emergency department with a two-day history of abdominal pain, profuse diarrhea, and vomiting. Symptoms began after ingesting chicken curry from takeout. Systolic blood pressure was 95 mmHg, heart rate 120/min, and temperature of 35.6 C. Physical exam revealed a distended and tympanic abdomen with diffuse tenderness. Over the next 12 hours, the patient's condition deteriorated despite medical therapy. The patient was taken to the operating room, where he was found to have patchy necrosis of the sigmoid colon and the small bowel. A subtotal colectomy with long-segment ileal resection and end ileostomy was performed. Histopathologic analysis of specimen revealed Gram-positive bacilli. This bacterium is the etiologic agent for a disease that is endemic to which country?

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