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Mite infestation rate of pet dogs with ear dermatoses
G S Park,1J S Park,1B K Cho,*1W K Lee,2 and J H Cho3
1Department of Dermatology, Catholic University Medical College, Seoul 150-010, Korea.
Received February 24, 1996; Accepted April 29, 1996.
Abstract
This study aimed to investigate the incidence of the canine ear dermatoses caused by mites and the relativity of the causative mites of canine dermatoses to the pruritic dermatoses of the families possessing the pet dogs. Total 970 samples were collected from the lesional hairs and scales of the ear of pet dogs referred to Chung-Woon animal clinic in Seoul from January, 1990 to December, 1995. The mites were collected from the samples by means of the washing method. Presence of pruritic dermatoses in the families possessing the pet dog was evaluated. Among 2,147 mites collected from 970 samples, 2,117 specimens were Octodectes cynotis and others were Sarcoptes canis (30 mites). O. cynotis were found in 382 samples out of total 970 samples (39.4%) and S. canis were found in 3 samples (0.3%). Although two families out of 382 families that possessed the diseased pet dog by O. cynotis had the family histories of pruritic dermatoses, their pruritic dermatoses were not related to the infestation by O. cynotis. In conclusion, O. cynotis, the most common canine mite producing pruritic ear dermatoses, does not cause pruritic dermatoses in man.
Figures
Fig. 1 Venter of Otodectes cynotis (A, male; B, female) Bar = 200 µm
Fig. 2 Mean number of mites per positive dog by month from 1990 to 1995.
Tables
Table 1 Incidence of mite infestation in the pet dog species
Table 3 Distribution of the mites by sex of the pet dogs
Table 4 Distribution of the mites by age groups of the pet dogs.
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