Cheyletiellosis
general
highly contagious
Cheyletiella spp. mites
affects...
C. blakei = cats 🐱
C. parasitivorax = rabbits 🐰
humans 👩
C. yasguri = dogs 🐶
move rapidly on skin surface
use pseudotunnels of epidermal debris
obligate parasites
adult females survive off host for up to 10d
not picky though, not super host specific
large, hook-like mouths
eggs adhere to hair shaft similar to lice
clinical signs
pruritis before or concurrent with lesions
dorsum
diagnosis
lesions
other household members affected
dandruff/scales on back
papules and crusts
scrape these if present
🐱
symmetrical alopecia +/- inflammation on dorsum
miliary dermatitis
no response to corticosteroids
clinical signs
skin scraping
mites not easy to find
do multiples
avoid excoriated areas
scrape where pet cannot itch
papules are best to scrape if present
deep enough for capillary bleeding
acetate tape
fecal float
response to treatment
treatment
drugs
🐶🐱
🐶
all species
Selamectin
milbemycin oxime
Advantage Muti ( imidacloprid + moxidectin)
fibronil spray
ivermectin
treat all animals on premises
treat environment
sometimes asymptomatic