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Aust Vet J. 2012 Nov;90(11):448-50. doi: 10.1111/j.1751-0813.2012.00994.x. Epub 2012 Sep 19.

Comparison of acetate tape impression with squeezing versus skin scraping for the diagnosis of canine demodicosis.

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Laboratory of Clinical Research on Dermatozoonosis in Domestic Animals, Evandro Chagas Clinical Research Institute/Oswaldo Cruz Foundation (Fiocruz), Av Brasil, 4365 - Manguinhos, 21045-900, Rio de Janeiro, Brazil.


This study compared the sensitivity of acetate tape impression and skin squeezing with that of deep skin scraping for the diagnosis of demodicosis in dogs. Demodex canis was detected in 100% of acetate tape impressions obtained after skin squeezing and in 90% of deep skin scrapings. There was a significant difference (P < 0.001) between the techniques in the total number of mites detected. Acetate tape impression with skin squeezing was found to be more sensitive than deep skin scraping and is an alternative diagnostic method for canine demodicosis.

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