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Which organism is named as a histamine producer in fish?

  • A.Morganella morganii
  • B.Listeria monocytogenes
  • C.Bacillus cereus
  • D.Staphylococcus aureus

Answer: A

Correct answer: Morganella morganii

Morganella morganii is the classic histamine former, carrying a highly active histidine decarboxylase. It is an enteric organism found in the gut and on the skin of fish, and it produces histamine rapidly at abuse temperatures, which is why time out of chill is the critical factor.

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