<prompt> Which of the following causes mesenteric lymphadenitis?AdenovirusCampylobacterYersinia pseudotuberculosisAll of the above  <response>: d. All of the aboveRef: Nelson 20e p 1405-6, 1611Acute 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. 