Demodex (Small Animals) Flashcards
What are the mites of dogs
Demodex Canis
D. Injai
D. Cornei
What are the mites of cats?
D. Cati
D. Gatoi
What are the mites of humans?
D. Folliculorum
D. Brevis
What is the life cycle of demodex?
Eggs —> larva —> nymph —> adult
What is the most common demodex species in dogs?
D. Canis
Localized lesions for dogs
May appear in 1-5 patchy areas of alopecia
On face, eye and mouth
Localized age, transmission and % infected in dogs
3-6 months
From dam to offspring during nursing period (first 2-3 days)
5-10%
Is there a spontaneous cure for localized demodex in dogs?
Yes with sexual maturity
Localized diagnosis and prognosis in dogs
Deep skin scraping , examine under microscope
Good
Localized and generalized treatment in dogs
Treat predisposing factors such as immunodeficiences, endoparasites, poor nutrition, clip hair, bathe, apply acaricide (Amitraz)
Generalized lesions in dogs
In generalized areas all over the body, coalescing alopecia
Skin edematous, erythematous, pruritic, folded, friable, oily
Can see pyoderma
Generalized age, breed predisposition and transmission in dogs
After sexual maturity
Medium and large dog breeds (purebreds)
2-3 days when pups are nursing
What percentage of dogs are affected by by generalized demodex?
5-10%
Generalized diagnosis prognosis in dogs
Skin scrape
Good
Localized lesions in cats
Cati rare in cats
Variable Pruritis lesions around eyes, head, neck, ceruminous otitis externa
Localized transmission and prognosis in cats
From queens to kittens (Cati)
Contagious (gatoi)
Is there a spontaneous cure for localized demodex in cats?
May occur seen with Cati
Localized and generalized diagnosis in cats
Deep skin scraping and examine under microscope (Cati)
Superficial skin scraping (gatoi)
Localized and generalized treatment in cats
Lyme sulfur dip
Onto use treatment until lesions resolve with consecutive negative skin scraping results (3-4 weeks)
Generalized lesions in cats
Rare (multilocal)
Patchy ears
Crusty skin
Head, neck, limbs, ventral side
generalized transmission in cats
Cati: not contagious
Gatoi: contagious
