Peer-reviewed veterinary case report
Common bacteria and antibiotic resistance in dogs with ear infections
By Bugden, D L·Published in Australian veterinary journal·2013·MSD Animal Health, Australia·View original on PubMed →
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Original publication title: Identification and antibiotic susceptibility of bacterial isolates from dogs with otitis externa in Australia.
- Species:
- dog
Plain-English summary
Dogs with ear infections (otitis externa) were tested for bacteria to find out which ones were causing the problem and how sensitive they were to antibiotics. The most common bacteria found included Pseudomonas aeruginosa and Staphylococcus pseudintermedius. Most of these bacteria were highly sensitive to gentamicin, a common antibiotic, but showed resistance to polymyxin B. This information can help veterinarians choose the right treatment for dogs suffering from ear infections.
People also search for: dog ear infection treatment · antibiotic for dog ear infection · what causes otitis externa in dogs
Abstract
OBJECTIVE: To identify and quantify the five most frequently isolated significant bacterial microorganisms, and their antibiotic susceptibility, from bacterial cultures of samples taken from the ears of dogs with otitis externa. METHODS: Bacterial culture and susceptibility testing data for ear swabs from dogs with presumed otitis externa were collated and evaluated. RESULTS: The five most frequently isolated microorganisms were: Pseudomonas aeruginosa, Staphylococcus pseudintermedius, Proteus sp., beta-haemolytic streptococci and Escherichia coli. Susceptibility to gentamicin was very high for most isolates, whereas for polymyxin B, high levels of resistance were seen. Beta-haemolytic streptococci had high levels of resistance to all of the antibiotics tested. CONCLUSIONS: This study provides veterinarians with Australian data to assist in cytological interpretation and initial empirical therapy of canine otitis externa.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/23356371/