Peer-reviewed veterinary case report
Cheyletiella mite infestation signs and tests in dogs
By Saevik, B K et al.·Published in The Journal of small animal practice·2004·Department of Small Animal Clinical Sciences·View original on PubMed →
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Original publication title: Cheyletiella infestation in the dog: observations on diagnostic methods and clinical signs.
- Species:
- dog
Plain-English summary
A group of dogs with skin problems were tested for Cheyletiella mites, which can cause itching and scaling. Four different diagnostic methods were used, but the vacuum cleaning test was the most effective, detecting mites in all dogs tested. While the vacuum method showed a clear presence of the mites, there wasn't a direct link between the number of mites found and how severe the dogs' symptoms were. This means that even if a dog had many mites, it didn't always correlate with how much they were itching or scaling.
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Abstract
The aims of this study were to evaluate the ability of diagnostic methods to detect naturally occurring Cheyletiella infestation in dogs, and to quantify and relate the number of mites and eggs present to clinical signs. Privately owned dogs with skin problems were eligible for inclusion in the study. Four diagnostic tests were performed on each dog in the following order: tape impression, hair plucking, skin scraping and vacuum cleaning. Dogs with positive test results for Cheyletiella infestation in at least one of the tests under evaluation were included in the study (n=27). The severity of pruritus and scaling was graded on a four-point fixed scale. The diagnostic findings in vacuum cleaning samples provided a semiquantitative measure of the grade of infestation. The vacuum cleaning test gave a positive test result in all dogs and was significantly more efficient than the other tests evaluated (P<0.01). The number of diagnostic findings varied considerably among the different vacuum samples. No significant relationship between the number of diagnostic findings and severity of clinical signs was detected.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15515798/