Difference between revisions of "Canine Infectious Tracheobronchitis"

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[[Category:To_Do_-_Caz]]
 
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[[Category:Respiratory_Viral_Infections]]

Revision as of 10:38, 20 July 2010

  • B. bronchiseptica acts as a primary pathogen in Infectious canine tracheitis
  • Frequently isolated from dogs with respiratory disease
  • Often found with viruses or mycoplasma
  • Adheres to ciliated epithelial cells in the trachea
  • Colonisation and proliferation in trachea
  • Releases toxins causing epithelial necrosis and prevents ciliary clearance
  • Irritation to tract causes coughing
  • Mortality rates low
  • Peribronchial inflammation and bronchopneumonia

can result in unvaccinated puppies or immunosuppressed dogs

  • Severe pneumonia following secondary infection e.g. with Streptococci
  • Fatal bronchopneumonia if occurs secondary to canine distemper virus
  • Transmission via respiratory secretions by direct contact or aerosol and on fomites
  • Clinical signs:
    • Develop within 3-4 days; persist for up to 2 weeks
    • Coughing
    • Gagging
    • Mild serous oculonasal discharge
  • Treatments includes antibiotics if coughing persists or bronchopneumonia develops
  • Live intranasal vaccines
  • Also found in respiratory tract of cats; can cause pneumonia in kittens; vaccine available