Review Question - QID 213653

A 35-year-old man presents to his primary care provider after experiencing 2 weeks of nausea and diarrhea with vague abdominal pain. The patient also states that he has had some loss of appetite and recently started developing a fever to 102.0°F (38.9°C) at home. The patient is otherwise healthy with no past medical history and reports no sick contacts at home or work. He has not tried any new foods. Of note, the patient reports that he was traveling in Asia 6 weeks ago. The patient reports no new sexual contacts or blood-borne exposures during that trip. On exam, the patient’s temperature is 100.4°F (38.0°C), blood pressure is 110/84 mmHg, pulse is 82/min, and respirations are 12/min. The patient appears slightly jaundiced with scleral icterus. His cardiopulmonary exam is not concerning. He has right upper quadrant tenderness to palpation. His labs demonstrate elevated transaminases, with an ALT of 10,000 U/L and AST of 8,000 U/L. His stool is negative for blood. Which of the following best describes the causative agent of this patient’s disease?