31. Which of the following disease is caused by Yersinia enterocolitica in a man?
A. Gastroenteritis
B. Mesenteric lymphadenitis
C. Septicaemia
D. All of these
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32. The most common cause of urinary tract infection in the community is
A. Klebsiella pneumoniae
B. Proteus vulgaris
C. Escherichia coli
D. Citrobacter freundii
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33. Bipolar staining is characteristic of
A. Yersinia pestis
B. Proteus mirabilis
C. Pseudomonas aeruginosa
D. all of these
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34. Spirochaetes exhibit
A. corkscrew-like rotatory movement
B. flexion and extension motility
C. translatory motion
D. all of the above
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35. Species of Shigella which is predominant in India is
A. S sonnei
B. S dysenteriae
C. S boydii
D. S flexneri
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