Mites

Question 1

Cheyletiella

Answer 1

Large palpable hook claws, complete life cycle on host, live in keratin layer of epidermis, Dog clinical signs: seborrhea, scaling/crusting on back of neck. Cat clinical signs: pruritis, often asymptomatic. Diagnosis if they have been in groups, kennel, humans have lesions. Do superficial skin scraping or clear tape.

Question 2

Treatment for Cheyletiella

Answer 2

Selamectin for all but there are no approved treatments. Contagious so treat all animals. Zoonotic.

Question 3

Otodectes cynotis

Answer 3

Otodectic mange, ear mites. Mostly seen in cats. Hypersensitivity, most at an early age. Do physical exam or ear swab. Clean ears and apply moxidectin or selamectin

Question 4

Chiggers

Answer 4

Small yellow/orange/red hairy mites. Larvae are parasitic only. Do not burrow in skin or suck blood. Inject enzyme that break down cells. Leads to papules, crust. Use anti-histamines or corticosteroids.