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a genus of gram-negative, facultatively anaerobic, motile, rod-shaped bacteria, which have been associated with diarrhea and secondary infections in debilitated persons, occasionally causing primary septicemia. Species include C. amalona´ticus and C. freun´dii, two opportunistic pathogens; and C. diver´�sus, an occasional cause of neonatal meningitis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A genus of motile bacteria (family Enterobacteriaceae) containing gram-negative rods that use citrate as a source of carbon; the motile cells are peritrichous. Fermentation of lactose by these organisms is delayed or absent; they produce trimethylene glycol from glycerol. The type species is Citrobacter freundii.
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