ISSN 2398-2977      

Moraxella equi

pequis
Contributor(s):

Synonym(s): Branhamella


Introduction

Classification

Taxonomy

  • Family: Branhamaceae or Moraxellaceae (proposed 1991 to be distinct from the family Neisseriaceae).
  • GenusMoraxella orBranhamella.
  • Species:equi.

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Clinical Effects

Epidemiology

Habitat

  • Conjunctiva and upper respiratory mucosa.

Lifecycle

  • May proliferate harmlessly on conjunctiva.
  • Invasion of and proliferation within conjunctival tissues produces inflammation.

Transmission

  • Direct and indirect contact.
  • Insects may act as vectors.

Pathological effects

  • May induce production of local secretory IgA.
  • Has been associated with cases of conjunctivitis in horses   Conjunctivitis: bacterial  .
  • Pathogenicity, as withMoraxella bovis, may be linked to the production of hemolysin and presence of fimbriae.
  • Fimbriae mediate attachment to conjunctival epithelium.

Other Host Effects

Control

Control via animal

Control via chemotherapies

Control via environment

  • Avoid contact with dust and flies.

Vaccination

  • None available.

Diagnosis

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Moore C P, Heller N, Majors L J et al (1988) Prevalence of ocular microorganisms in hospitalised and stabled horses. Am J Vet Res 49 (6), 773-777 PubMed.
  • Huntingdon P J, Coloe P J, Bryden J D & Macdonald F (1987) Isolation of a Moraxella sp. from horses with conjunctivitis. Aus Vet J 64 (4), 118-119 PubMed.

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