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Streptococcus constellatus-associated pyoderma in a dog
Luisa De Martino1, Sandra Nizza1, Claudio de Martinis1
1Department of Pathology and Animal Health, Faculty of Veterinary Medicine, University of Naples 'Federico II', Via F. Delpino 1, 80137 Naples, Italy.
Journal of Medical Microbiology
|November 15, 2011
Summary
This case study highlights a dog with chronic pyoderma caused by Streptococcus constellatus. Effective treatment involved tetracyclines after antimicrobial susceptibility testing, demonstrating fluoroquinolones are not ideal for initial canine pyoderma therapy.
Area of Science:
- Veterinary Dermatology
- Microbiology
- Antimicrobial Resistance
Background:
- Canine pyoderma is a common skin condition often treated empirically.
- Fluoroquinolone therapy is frequently used for bacterial skin infections in dogs.
- Delayed diagnosis and inappropriate initial treatment can lead to chronic conditions.
Observation:
- A 4-year-old male dog presented with a 3-month history of chronic, deep pyoderma.
- Previous treatment with fluoroquinolones was unsuccessful.
- Microbiological examination identified Streptococcus constellatus as the causative agent.
Findings:
- Definitive diagnosis of Streptococcus constellatus-associated pyoderma was confirmed.
- Antimicrobial susceptibility testing guided treatment selection.
- Tetracycline therapy resulted in complete clinical recovery.
Implications:
- This is the first reported case of canine pyoderma caused by Streptococcus constellatus.
- Antimicrobial susceptibility testing is crucial for effective pyoderma treatment.
- Fluoroquinolones are suboptimal for empirical treatment of canine pyoderma.
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