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The most pathogenic Brucella spp for man is

  • A.B melitensis
  • B.B abortus
  • C.B suis
  • D.B canis

Answer: A

Correct answer: B melitensis

B. melitensis, whose natural hosts are goats and sheep, causes the most severe and most protracted human disease of the four and accounts for most clinical cases worldwide. B. suis from pigs is next, B. abortus from cattle produces milder illness, and B. canis is an uncommon cause of human infection.

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