Fusobacterium necrophorum in Cows (Bovis) | Vetlexicon
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Fusobacterium necrophorum

ISSN 2398-2993

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Synonym(s): fusobacteriaceae

Introduction

Classification

Taxonomy

  • Domain: bacteria.
  • Phylum: fusobacteria.
  • Class: fusobacteria.
  • Order: fusobacteriales.
  • Family: fusobacteriaceae.
  • Genus: fusobacterium.
  • Species: necrophorum.
  • SubspeciesF. n.subspp necrophorum and F. n.subspp funduliforme.

Etymology

  • F. n.subsp. necrophroum previously = Biovar A of F. necrophorum.
  • F. n.subsp. funduliforme previously = Biovar B of F. necrophorum.
  • fusus = a spindle; bacterium = a small rod; fusobacterium = a small spindle shaped rod.
  • nekros = the dead; phoreo = to bear; necrophorum = necrosis producing.
  • fundulus = a kind of sausage; forme = in shape of; funduliforme = sausage shaped.

Distribution

  • Found on mucus membranes such as those of the digestive, oropharynx and urogential tracts.
  • Excreted in feces.

Significance

  • F. necrophorum is an opportunistic pathogen causing many necrotic conditions, either specific or non-specific infections in many species of animals.
  • Associated with necrotic pharyngitis/laryngitis Conditions of the larynx in calves (usually less than 3 months of age) which can progress to fatal necrotising pneumonia.
  • Associated with bovine liver abscesses Ruminal acidosis in cattle kept in feedlot settings (eg cattle fed diets high in carbohydrates).
  • Associated with black spot of teat of dairy cows. Teat disorders: an overview
  • Associated with foot rot in cattle Footrot.

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Resting Forms

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Clinical Effects

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Diagnosis

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Tadepalli S, Narayanan S K, Stewart G C, Chengappa M M, Nagaraja T G (2009) Fusobacterium necrophorum: a ruminal bacterium that invades liver to cause abscesses in cattle. Anaerobe 15 (1-2), 36-43 PubMed.
  • Roberts G L (2000) Fusobacterial infections: an underestimated threat. Br J Biomed Sci 57 (2), 156-62.
  • Nagaraja T G & Chengappa M M (1998) Liver abscesses in feedlot cattle: a review. J Anim Sci 76 (1), 287-98 PubMed.
  • Mateos E, Piriz S, Valle J, Hurtado M & Vadillo S (1997) Minimum inhibitory concentrations for selected antimicrobial agents against Fusobacterium necrophorum isolated from hepatic abscesses in cattle and sheep. J Vet Pharmacol Ther 20 (1), 21-3 PubMed.
  • Tan Z L, Nagaraja T G & Chengappa M M (1996) Fusobacterium necrophorum infections: virulence factors, pathogenic mechanism and control measures. Vet Res Commun 20 (2), 113-40 PubMed.

Other sources of information

  • Nagaraja T G et al (2005) Fusobacterium necrophorum infections in animals: Pathogenesis and pathogenic mechanisms. Anaerobe 11 (4), 239-246 PubMed.
  • Citron D M (2002) Update on the taxonomy and clinical aspects of the genus Fusobacterium. Clin Inf Dis 35 (Suppl 1), 22-27 PubMed.
  • Markey B et al (2013) Non-spore-forming Anaerobes. In: Clinical Veterinary Microbiology. Mosby Elsevier, UK. pp 205-213. 
  • Quinn P J et al (2011) Pathogenic Anaerobic Non-spore-forming Gram-negative Bacteria. In: Veterinary Microbiology and Microbial Disease. Wiley-Blackwell, UK. pp 368-371.
  • Carter G R & Wise D J (2004) Non-Spore-Forming Anaerobic Bacteria. In: Essentials of Veterinary Bacteriology and Mycology. Iowa: Iowa State Press. pp 235-238.
  • Hirsh D C (2004) Non-Spore-Forming Obligate Anaerobes. In: Veterinary Microbiology. Blackwell Publishing, USA. pp 193-197.

Organization(s)

  • List of prokaryotic names with standing in nomenclature (LPSN). Available at: www.bacterio.net.