Changes

==Pathogenesis and epidemiology==

==Pathogenesis and epidemiology==

*[[Demodex|''Demodex'']] are normal inhabitants of hair follicles and sebaceous glands but have to have increased number of immature mites to classify as an infestation. .

[[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.

*Transmits during nursing from dam to offspring

*''Demodex canis'' in dogs:

*''Demodex canis'' in dogs:

**Generalised or localised

**Generalised or localised

**Mainly young dogs affected or adults with other disease ([[Adrenal Glands - Pathology#Adrenal Hyperfunction|hyperadrenocorticism]], [[Thyroid Gland - Pathology#Hypothyroidism|hypothyroidism]])

**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

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 although adult onset is recognised.