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[[Demodex|''Demodex'']] are normal inhabitants of hair follicles and sebaceous glands but there has to be increased numbers of immature mites to classify as an infestation. The mite is transmitted from dam to offspring during nursing.
[[Demodex|''Demodex'']] are normal inhabitants of hair follicles and sebaceous glands but there has to be increased numbers of immature mites to classify as an infestation. The mite is transmitted from dam to offspring during nursing.
*''Demodex canis'' in dogs:
*''Demodex canis'' in dogs:
Generalised or localised
Mainly young dogs affected or adults with other disease andare immunosuppressed ([[Adrenal Glands - Pathology#Adrenal Hyperfunction|hyperadrenocorticism]], [[Thyroid Gland - Pathology#Hypothyroidism|hypothyroidism]])
**Often inherited in pure bred
**Often inherited in pure bred
==Signalment==
==Signalment==
Commonly affects the dog and more rarely the cat.
Commonly affects the dog and more rarely the cat.
Breed predilections
Breed predilections
Demodicosis is usually a disease of short haired dogs and is more common in pedigree breeds. Within breeds, the Staffordshire bull terrier, German Shepherd dog, Old English Sheepdog, Collies and dalmations.
Demodicosis is usually a disease of short haired dogs and is more common in pedigree breeds. Within breeds, the Staffordshire bull terrier, German Shepherd dog, Old English Sheepdog, Collies and dalmations are at risk.
Age predilections
Age predilections
Often animals less than 12 months of age although adult onset is recognised.
Often animals less than 12 months of age of affected although adult onset is recognised.
Increased incidence in Siamese and Burmese cats.
Increased incidence in Siamese and Burmese cats.
==Diagnosis==
==Diagnosis==