ISSN 2398-2993      

Klebsiella spp

obovis

Synonym(s): Enterobacteriaceae, Klebsiella pneumoniae, Klebsiella oxytoca


Introduction

Classification

Taxonomy

  • Order: Enterobacteriales.
  • Family: Enterobacteriaceae.
  • Genus: Klebsiella.
  • Species: pneumoniae, oxytoca and variicola.

Etymology

  • Klebsiella: named after T.A.E. Klebs (1834-1913) - German bacteriologist. 
  • Pneumoniae: Gk: pneuma - wind, breath.
  • Oxytoca: Gk: Oxus – sour; tokos – producing.

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Clinical Effects

Epidemiology

Habitat

  • Present in the intestinal tract of humans and animals. Cattle and horses are principal hosts.
  • May be shed by up to 80% of healthy cows.
  • Contaminate/populate soil, water, bedding and feeds (forage and grains).
  • Common source:
    • Heavy fecal contamination of environment.
    • Poor storage/handling and organic matter contamination of bedding materials.
    • Wet sawdust bedding or non-kiln dried.
    • Shavings.

Transmission

  • Klebsiella spp are transmitted via contact with a contaminated environment, ie fecal contamination on milking equipment or bedding.

Pathological effects

Control

Vaccination

  • Vaccination has been shown to decrease the severity of clinical mastitis experienced in early lactation Mastitis vaccines. Examples of vaccines include:
    • Startvac® (HIPRA): First injection at 45 days before the expected parturition date.
    • Second injection 35 days thereafter (corresponding to 10 days before the expected parturition date).
    • Third injection 62 days after the second injection (equivalent to 52 days post-parturition).
    • The full immunization program should be repeated with each gestation.
  • Vaxxon® SRP® Klebsiella (in USA).
  • Klebsiella Vetovax SRP (Canada).

Diagnosis

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Further Reading

Publications

Refereed Papers

  • Recent references from PubMed and VetMedResource.
  • Darniati D, Setiyaningsih S, Agungpriyono D R & Handharyani E (2021) First evidence of Klebsiella pneumoniae infection in Aceh cattle: Pathomorphology and antigenic distribution in the lungs. Vet World 14 (4), 1007-1013 PubMed.
  • Tsuka T, Ozaki H, Saito D et al (2021) Genetic characterization of CTX-M-2-producing Klebsiella pneumoniae and Klebsiella oxytoca associated with bovine mastitis in Japan. Front Vet Sci 8, 659222 PubMed.

Other sources of information

  • VetBact (2022) Klebsiella Oxytoca. Swedish University of Aricultural Sciences, Faculty of Veterinary Medicine and animal Science. Website: www.vetbact.org.

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