ISSN 2398-2942      

Enterobacter aerogenes (aerobacter aerogenes)

icanis
Contributor(s):

Richard Walker


Introduction

Classification

Taxonomy

  • Family: Enterobacteriaceae.
  • Genus: Enterobacter.
  • Tribe: Klebsiellae.
  • Species: aerogenes

Etymology

  • Greek: entero - intestine; bacter - a small rod; aerogenes - gas-producing.

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Clinical Effects

Epidemiology

Habitat

  • Usually commensal - found in water, soil, sewage and gastrointestinal tract.
  • Isolated from tracheal swabs and lungs in healthy dogs.

Lifecycle

  • Reproduces by binary fission in anaerobic or aerobic environments.
  • Does not form spores.
  • May undergo conjugation with other enterobacteria, with transfer of plasmids.

Transmission

  • Exogenous or endogenous infection.
  • Often following wound contamination.

Pathological effects

  • Trauma → triggers endogenous (opportunistic) infection → pathogenicity.

Diseases

  • Cattle: coliform mastitis.
  • Horse: uterine infections.
  • Pig: Occasionally part of mastitis-metritis-agalactia (MMA) syndrome.

Control

Control via chemotherapies

Usual susceptibility

Resistance

  • Cephalothin Cefalexin.
  • Ampicillin Ampicillin.
    Antibiotic resistance is a problem as in other Enterobacteriaceae.

Vaccination

  • None.

Diagnosis

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Burrows G E, Morton R J & Fales W H (1993) Microdilution antimicrobial susceptibilities of selected gram-negative veterinary bacterial isolates. J Vet Diagn Invest (4), 541-547 PubMed.
  • Dow S W, Jones R L, Adney W S (1986) Anaerobic bacterial infections and response to therapy in dogs and cats: 36 cases (1983-1985). JAVMA 189 (8), 930-934 PubMed.
  • Kreeger T J, Jeraj K P & Manning P J (1984) Bacteremia concomitant with parvovirus infection in a pup. JAVMA 184 (2), 196-197 PubMed.

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