Peer-reviewed veterinary case report
Different Staphylococcus pseudintermedius strains in dog skin
By Larsen, Rikke Friis et al.·Published in Veterinary dermatology·2018·Department of Veterinary and Animal Sciences·View original on PubMed →
PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →
Original publication title: Diversity of Staphylococcus pseudintermedius in carriage sites and skin lesions of dogs with superficial bacterial folliculitis: potential implications for diagnostic testing and therapy.
- Species:
- dog
Plain-English summary
A group of 14 dogs with skin infections called superficial bacterial folliculitis (SBF) were studied to understand the types of bacteria involved. The researchers found that different strains of Staphylococcus pseudintermedius, the bacteria responsible for these infections, could be present in various skin lesions and other areas like the mouth and rear end. Some dogs had multiple strains in a single lesion, which could complicate treatment since different strains might respond to different antibiotics. The findings suggest that when testing for bacteria, focusing on pustules (raised bumps filled with pus) is most effective for getting accurate results.
People also search for: dog skin infection treatment · Staphylococcus pseudintermedius in dogs · dog pustule antibiotic resistance
Abstract
BACKGROUND: Staphylococcus pseudintermedius is genotypically diverse within the canine population and multiple strains may colonize individual dogs at any given time. If multiple strains with distinct antimicrobial resistance profiles are present in superficial bacterial folliculitis (SBF), sampling a single skin lesion for culture and antimicrobial susceptibility testing (AST) might be inadequate to select effective therapy. HYPOTHESIS/OBJECTIVES: To investigate S. pseudintermedius diversity in carriage sites and lesions of dogs with SBF. ANIMALS: Fourteen dogs with SBF. METHODS: Staphylococcus pseudintermedius isolates obtained from perineum, gingiva and four to six skin lesions per dog were subjected to pulsed-field gel electrophoresis (PFGE) and AST to assess diversity between lesions. For two dogs, 14-16 isolates per lesion were included in the analysis to assess diversity within lesions. RESULTS: Analysis of one isolate per lesion revealed one to four strains displaying unique PFGE profiles, and up to three unique antimicrobial resistance (AMR) profiles for each dog. Multiple pustules from the same dog always harboured the same strain, whereas papules, crusts and collarettes did not. Up to four strains with distinct AMR profiles were isolated from the same lesion in two dogs. In 12 dogs, at least one carriage site strain also was represented in lesions. CONCLUSIONS AND CLINICAL IMPORTANCE: Lesions of SBF may harbour multiple S. pseudintermedius strains with distinct antimicrobial resistance profiles. Pustules are the best target for bacterial culture. It remains unclear whether isolation of different strains from other lesion types is a consequence of contamination or co-infection by multiple strains.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/29781542/