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Also known as: '''''Walking dandruff'''''
==Introduction==
{{Taxobox
|name =''Cheyletiella''
|phylum =Arthropoda
|class =Arachnida
|subclass =Acari
|order =Trombidiformes
|family =Cheyletidae
|genus =Cheyletiella
}}
[[Image:cheyletiella.jpg|thumb|right|200px|''Cheyletiella mite'' - Kalumet 2004,Wikimedia Commons]]
[[Image:cheyletiella 2.jpg|thumb|right|200px|''Cheyletiella mite closeup'' - Kalumet 2004,Wikimedia Commons]]
[[File:chey.jpg|right|thumb|175px|<small><center>Cheyletiellosis in a Labrador Retriever (from Uwe Gille (2008), Wikicommons]</center></small>]]
Cheyletiellosis is a contagious disease caused by ''Cheyletiella'' sp. The [[:Category:Mites|mites]] live on the [[Skin - Anatomy & Physiology|skin]] surface causing itching and [[Skin Glossary - Pathology#Scale|scale]] on affected animals. Transmission is mainly by direct contact but the mites can also be transported between animals via a [[:Category:Fleas|flea]] or [[:Category:Lice - Dog|lice]]. It is a zoonotic disease.
==Mites==
Cheyletiella mites are [[Non-Burrowing Mites|surface mites]] of dogs and cats.
They are also found on humans and rabbits. They cause Cheyletiellosis, a parasitic skin infestation.
They have a waisted body and claw like palps on their heads. They also have combs at the ends of their legs.
==Description==
===Lifecycle===
The lifecycle of a Cheyletiella mite lasts 21-35 days on the host. The adults mites can survive off the host for 2-14 days. They live on the skin surface and their eggs are attached to hair shafts.
===Important Species===
''C.yasguri''- Most commonly found on dogs.
''C.blakei''- Most commonly found on cats and humans.
''C.parasitivorax''- Most commonly [[Mites – Rabbit#Cheyletiella parasitivorax|found on rabbits]].
==Signalment==
==Signalment==
Occurs in dogs, cats, rabbits, humans and wild animals. There is no breed, sex or age predisposition but it is often seen in puppies probably due to management reasons.
Occurs in dogs, cats, rabbits, humans and wild animals. There is no breed, sex or age predisposition but it is often seen in puppies probably due to management reasons.
==Diagnosis==
==Diagnosis==
A diagnosis can be made on history and clinical signs in combination with demonstration of the parasite.
A diagnosis can be made on history and clinical signs in combination with demonstration of the parasite.
Scurf can be brushed onto dark paper and 'Walking dandruff' will be seen as mites will move when present in large numbers.
Scurf can be brushed onto dark paper and 'Walking dandruff' will be seen as mites will move when present in large numbers.
Marked pruritus is sometimes present which in severe cases can be confused as neurological disease.
Marked pruritus is sometimes present which in severe cases can be confused as neurological disease.
In cats pruritus is also a common feature with the presence of scale and [[Skin Glossary - pathology#papules|papules]]. Miliary dermatitis is a commmon finding normally on the neck
In cats pruritus is also a common feature with the presence of scale and [[Skin Glossary - Pathology#papules|papules]]. Miliary dermatitis is a commmon finding normally on the neck or back of the cat.
or back of the cat.
==Pathology==
==Pathology==
==Treatment==
==Treatment==
All in contact animals should be treated.
All in contact animals should be treated.
The environment the animal has been living in should be cleaned and also treated.
The environment the animal has been living in should be cleaned and also treated.
Good, will resolve with treatment as long as the animal does not become re-infested.
Good, will resolve with treatment as long as the animal does not become re-infested.
{{Learning
|Vetstream = [https://www.vetstream.com/canis/Content/Disease/dis02357.asp Cheyletiellosis in dogs]<br>[https://www.vetstream.com/canis/Content/Bug/bug00051.asp Cheyletiella yasguri image]
|flashcards = [[Mites_Flashcards|Mites Flashcards]]<br>[[Small Mammals Q&A 13]]<br>[[Rabbit Medicine and Surgery Q&A 17]]
|literature search = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=Cheyletiellosis&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all&x=46&y=5 Cheylletiellosis publications]
}}
==References==
==References==
Foster A.P and Foil C.S (2003) '''BSAVA manual of Small Animal Dermatology'''. 2nd edition. BSAVA.
Foster A.P and Foil C.S (2003) '''BSAVA manual of Small Animal Dermatology'''. 2nd edition. BSAVA.
[[Category:To_Do_-_Caz]]
Taylor, M.A, Coop, R.L., Wall,R.L. (2007) '''Veterinary Parasitology''' ''Blackwell Publishing''
[[Category:Zoonotic]]
{{review}}
{{OpenPages}}
[[Category:Zoonoses]]
[[Category:Expert_Review]]
[[Category:Cat]]
[[Category:Dermatological Diseases - Cat]]
[[Category:Dog]]
[[Category:Dermatological Diseases - Dog]]
[[Category:Dermatological Diseases - Horse]]
[[Category:Integumentary System - Mite Infections]]