Peer-reviewed veterinary case report
First feline case of otodectosis in the Republic of Korea and successful treatment with imidacloprid/moxidectin topical solution.
- Journal:
- The Korean journal of parasitology
- Year:
- 2013
- Authors:
- Ahn, Ah-Jin et al.
- Affiliation:
- Department of Parasitology · South Korea
- Species:
- cat
Plain-English summary
In April 2010, three Siamese cats in Gwangju, Korea, were found to have intense itching and dark, waxy discharge in their ears, which were caused by ear mites called Otodectes cynotis. To test a treatment, ten other cats that didn't have ear mites were intentionally infected with these mites and then treated with a topical solution containing 10% imidacloprid and 1% moxidectin. While one treated cat still had live mites nine days after treatment, all treated cats were free of mites by 16 and 30 days after treatment. This study shows that the treatment was very effective, clearing the mites completely in the treated cats.
Abstract
In April 2010, pruritic symptoms were recognized in 3 privately-owned Siamese cats raised in Gwangju, Korea. Examination of ear canals revealed dark brown, ceruminous otic exudates that contain numerous live mites at various developmental stages. Based on morphological characteristics of adult mites in which caruncles were present on legs 1 and 2 in adult females and on legs 1, 2, 3, and 4 in adult males while the tarsus of leg 3 in both sexes was equipped with 2 long setae, the mite was identified as Otodectes cynotis. Ten ear mite-free domestic shorthaired cats were experimentally infected with O. cynotis to evaluate the efficacy of 10% imidacloprid/1% moxidectin spot-on. Live mites were recovered from 1 of 10 treated cats on day 9 post-treatment (PT) while no live mites were observed from the ear canals of treated cats on days 16 and 30 PT. The efficacy of 10% imidacloprid/1% moxidectin spot-on on O. cynotis in cats was, therefore, 90% on day 9 and 100% on days 16 and 30 PT. This is the first report of otodectosis in 3 cats naturally infested with O. cynotis in Gwang-ju, Korea. Both natural and experimental infestations were successfully treated with 10% imidacloprid/1% moxidectin spot-on.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/23467905/