Cheyletiella yasguri

Cheyletiella yasguri is a species of mites from the genus Cheyletiella popularly known as "walking dandruff" and one of the many ectoparasites that targets domestic dogs.

Cheyletiella yasguri
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Subclass: Acari
Order: Actinedida
Family: Cheyletidae
Genus: Cheyletiella
Species:
C. yasguri
Binomial name
Cheyletiella yasguri
Smiley, 1965

Characterized as the “bite and run” parasite, the first reported case of Cheyletiella Yasguri was in Italy in the year of 1965.[1] It is named after Dr. I. Yasgur.[2] It has been found throughout the world with reported cases in the Italy, Germany, The Netherlands, the U.S. etc. A distinguishable characteristic that sets species C. yasguri apart from the others is the morphology of the sensory organ in the legs. The mite contains two lobes compared to the species C. parasitivorax which only contains one.[3] Cheyletiella Yasguri causes irritation and inflammation of the skin (Dermatitis) usually as a result of allergic reaction. Young pups are most vulnerable and conditions can be mild to very severe. This mite resides in the outer layer of the skin (keratin) and does most of its feeding on the liquid substance of tissue.[4] They do not dig into the skin and do not replicate.[5]

Diagnosis

In order to diagnose the condition, samples of the skin or fur must be further examined under a microscope. Other techniques used to diagnose the condition include deep scraping of the skin and removal of samples with the use of tape.[6] Because symptoms are often similar those of Scabies, an accurate diagnosis would be under a microscope.

Transmission

It is highly transmittable especially through physical contact. Humans are also prone to becoming infested with mites. If contact with pet is cut off completely symptoms will disappear after a short amount of time because the parasites do not replicate on humans. Common infested areas in humans vary from the chest, abdomen, arms, and buttocks. Common infestation areas in dogs include the neck, back, and tail. Results can be anything from lesions of the skin, severe itching, and sometimes the condition will go unnoticed in dogs.[3]

Treatments

In animals treatments range a wide variety of antibiotic therapy, antiparasitic therapy, topical steroids, Gamma benzene hexachloride, and insecticides. Less than one percent Gamma benzene hexachloride has proven to be very effective if used as prescribed by a veterinarian.[6]

References
  1. Canestri-Trotti G, Venturoli M. (1978). "Isolation of Cheyletiella yasguri Smiley, 1965 in a dog in Italy". National Center for Biotechnology Information.
  2. Bakkers, E. J. M.; Fain, A. (1972). "Dermatitis in man and in a dog caused by the mite Cheyletiella yasguri Smiley". British Journal of Dermatology. 87 (3): 245–247. doi:10.1111/j.1365-2133.1972.tb00313.x.
  3. Powell, Ralph F.; Palmer, Susan M.; Palmer, Charles H.; Smith, Edgar B. (1977). "Cheyletiella dermatitis". International Journal of Dermatology. 16 (8): 679–682. doi:10.1111/j.1365-4362.1977.tb01882.x.
  4. Walton Angarano, Donna (1994). "Comparative dermatology: parasitic disorders". Clinics in Dermatology. 12 (4): 543–550. doi:10.1016/0738-081x(94)90221-6.
  5. Hewitt; Barrow, C. I.; Miller, D. C; Turk, F.; Turk, S. (2006). "Mites in the personal environment and their role in skin disorders". Br. J. Dermatol. 89 (401): 1973. doi:10.1111/j.1365-2133.1973.tb02995.x.
  6. Mueller, Ralf S. "Small Animal Dermatology". Ludwig Maximilian University Munich, Germany.
  • Canestri-Trotti, G; Venturoli, M (Dec 1978). "[Isolation of Cheyletiella yasguri Smiley, 1965 in a dog in Italy]". Parassitologia. 20 (1–3): 205–10. PMID 553273.
  • Data related to Cheyletiella yasguri at Wikispecies
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