🦠microbiology review

CFB group

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

CFB group refers to a cluster of Gram-negative bacteria, including genera Cytophaga, Fusobacterium, and Bacteroides. These bacteria are known for their role in the digestion of complex organic materials and their presence in human microbiomes.

5 Must Know Facts For Your Next Test

  1. CFB group bacteria are Gram-negative and non-sporulating.
  2. Members of the CFB group play a crucial role in degrading polysaccharides in the gut microbiome.
  3. Fusobacterium species within the CFB group are associated with periodontal disease.
  4. Bacteroides species are predominant in the human intestines and help maintain gut health by breaking down complex molecules.
  5. CFB group bacteria can be found in various habitats including soil, freshwater, and marine environments.

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