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Demodectic Mange
Skin disease from Demodex mite overgrowth in cats, involving two mite species with different biology.
Key Facts
- Demodex cati: lives in hair follicles, NOT contagious, suggests immune suppression
- Demodex gatoi: superficial, contagious between cats, all household cats need treatment
- Isoxazoline flea products (Bravecto, Revolution Plus) effective for both species
- Lime sulfur dips are older alternative treatment (unpleasant smell)
- PCR DNA test available for Demodex gatoi detection
- Skin scraping is primary diagnostic method
- Fecal samples may detect mites licked and swallowed by grooming