Capillaria aerophilia

Eucoleus aerophilia • C. aerophilia • C. aerophilus

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  • Class: Nematoda .
  • Superfamily: Trichuroidea .
  • Genus: Capillaria .


  • Rarely recorded in domestic pets.
  • Occurs primarily in cats in contact with foxes, eg rural cats, but occasionally urban cats.
  • Prevalence of infection in foxes in Europe and USA can reach 20-75%.
  • Prevalence in foxes in southern England recently recorded as 0.2%.
  • Prevalence nationwide in USA is 0.4% (west 0.07%; southeast 0.72%.).


  • Many cases asymptomatic.
  • Some may show an occasional cough.
  • Occasionally moderate to severe rhinitis    and/or tracheobronchitis  [Chronic bronchitis]  that is rarely accompanied by bronchopneumonia  [Pneumonia]  .
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