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Which Vibrio species causes the most severe and life-threatening infections?

  • A.Vibrio vulnificus
  • B.Vibrio parahaemolyticus
  • C.Vibrio alginolyticus
  • D.Vibrio fischeri

Answer: A

Correct answer: Vibrio vulnificus

V. vulnificus causes septicaemia rather than a self-limiting gastroenteritis, invading the bloodstream from the gut or through a wound exposed to seawater. It is far less common than V. parahaemolyticus but vastly more dangerous, and it is the reason raw oysters carry warnings for at-risk groups.

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