Cheyletiellosis in long-haired cats.

Among 41 catteries, the majority of which were investigated because of problems of chronic pruritus, 27 proved to be infected by Cheyletiella mites. The skin lesions consisted of small erythematous papules with crusts and some loose hairs. After removal of the loose hairs Cheyletiella mites could be collected with adhesive tape for microscopic examination. Human involvement (papular urticaria) was observed in 20% of the cases. Bathing with Lindane was an effective mode of treatment.