JOURNAL OF ANIMAL SCIENCE AND VETERINARY MEDICINE
Integrity Research Journals
ISSN: 2536-7099
Model: Open Access/Peer Reviewed
DOI: 10.31248/JASVM
Start Year: 2016
Email: jasvm@integrityresjournals.org
Small colony variants of Staphylococcus aureus causing chronic respiratory infections in a dog
https://doi.org/10.31248/JASVM2024.520 | Article Number: 8C9B38135 | Vol.10 (1) - February 2025
Received Date: 03 December 2024 | Accepted Date: 22 January 2025 | Published Date: 28 February 2025
Authors: Nguavese Emmanuella Akange-Ejeye* , Kadoon Kaase and Denthe Haruna Danladi
Keywords: Antimicrobial resistance, Auxiotrophicity, small colony variants chronic infections, vitamin K.
Staphylococcus aureus produces a colonial variant called small colony variant (SCV), responsible for chronic infections in immunocompromised animals and humans. This variant contributes to recurrent infections via increased biofilm formation, altered antimicrobial susceptibility and intracellular persistence to evade host defence mechanisms. These infections are an emerging problem because of the difficulty in laboratory diagnosis, a tendency among clinicians and technologists to dismiss these colonies as commensal organisms, and their resistance to antibiotics that target bacterial cell walls and aminoglycosides. This study reports a case of recurrent and persistent respiratory infections in a 5-year-old female dog caused by SCV of S. aureus.
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