Acute bronchopneumonia associated with Mycobacterium fortuitum infection in a dog

P J Irwin1, K Whithear, R B Lavelle

  • 1Department of Veterinary Clinic and Hospital, University of Melbourne, Werribee, Victoria.

Insights

Mycobacterium fortuitum caused severe pneumonia in a young Corgi. Prompt antibiotic treatment led to a favorable outcome, highlighting the need to consider mycobacterial infections in canine respiratory disease.

Area of Science:

  • Veterinary Medicine
  • Microbiology
  • Canine Pathology

Background:

  • Bacterial pneumonia is a common respiratory ailment in dogs.
  • Mycobacterium species, particularly non-tuberculous mycobacteria, can cause opportunistic infections.

Observation:

  • A 1-year-old Corgi presented with a 10-day history of productive cough.
  • Radiographic and cytologic findings indicated acute suppurative bronchopneumonia.

Findings:

  • Mycobacterium fortuitum was identified in bronchial fluid samples.
  • The dog showed a positive response to a combination of gentamicin, cephalexin, and ciprofloxacin therapies.
  • Treatment involved initial intravenous antibiotics followed by a six-week oral course.

Implications:

  • Mycobacterial pneumonia should be considered in young dogs with severe pulmonary consolidation.
  • Early diagnosis and appropriate antimicrobial therapy are crucial for successful treatment outcomes.
  • This case underscores the importance of identifying specific pathogens for targeted veterinary care.

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