This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Considerations - Infectious Diseases, Subject name: Pediatrics
[{'content': 'Which of the following causes mesenteric lymphadenitis? \nSelect and explain. \nA. Adenovirus, B. Campylobacter, C. Yersinia pseudotuberculosis, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: d. All of the above(Ref: Nelson 20/e p 1405-6, 1611)Acute appendicitis, mesenteric lymphadenitis & ileocolitis have been reported in patients who have had appendectomies during C. jejuni infection.Yersinia pseudotuberculosis is most often associated with mesenteric lymphadenitis.Human Adenovirus may also cause mesenteric adenitis.', 'role': 'assistant'}]