1. “Education is a Progressive discovery of our own ignorance.”
-Will Durant

2. CASE #3

3. Tick life cycle

4. Tick life cycle
Female lays 1,000 to 10,000 eggs before dying

5. Ticks *** HOW TICKS INJURE ANIMALS:
Irritation of the bite wound
Vector for diseases
Monocytic and Granulocytic Ehrlichiosis
Lyme Disease
Rocky Mountain Spotted Fever
Tick Paralysis
Many others…
Clinical signs vary with disease
Dx: finding tick on physical exam, history of exposure to wooded and grassy areas

6. Ticks
Treatment
Remove ticks: Grasp head parts close to skin with hemostats (NOT HANDS) and pull; no gasoline, cigarettes, etc.
Topical treatments (sprays, shampoos, powder, dips)
Topical systemic products
Advantix
Bravecto
Nexgard…
Client Info
Routinely check pets for ticks, esp. after walks in parks, etc.
blood may be infectious
Ticks will feed on humans

7. CASE #4

8. Burrowing Mites Family Sarcoptidae Sarcoptes, Notoedres, Knemidocoptes
Small, round, live in
skin tunnels. Short
legs close to body.
Sarcoptes,
Notoedres,
Knemidocoptes
Trixacarus
Family Demodicidae
Live in hair follicles.
Adults cigar shaped.
Demodex canis
Demodex cati
Demodex gatoi

9. Burrowing Mites Diagnosis Deep Skin scraping for Demodex
Superficial skin scraping may be sufficient for sarcoptes

10. Demodectic mange

11. Demodex *** Demodex canis
Inhabits hair follicles, sebaceous glands or apocrine sweat glands
Normal inhabitant in small numbers
Immune system controls infestation
Transmission: genetic predisposition to overgrowth

12. Demodex in cats *** D. cati D. gatoi -
Similar to D. canis – lives in hair follicles
D. gatoi -
Fat (broad, blunted abdomen)
Lives more superficial in stratum corneum
More pruritic

13. Demodex
Demodex cati (right) Demodex gatoi
Demodex canis (left)

14. DEMODEX

15. Demodex *** Clinical Signs Localized Young dog (3m-1 y);
Alopecia esp. on face
Not pruritic unless secondary infections are present
Generalized
Often febrile
Entire body surface involved
Secondary bacterial infection - pustules

16. Demodex Treatment for localized demodex
Goodwinol (Rotenone) topical daily
Bactoderm (mupirocin)

17. Demodex Treatment for generalized demodex
Mitaban (amitraz) – topical dip
FDA approved treatment
Side Effects – sedation for hrs (up to 72 hrs)
Ivermectin: SQ or PO
extralabel use
CAUTION in herding breeds
Side Effects: ataxia, respiratory arrest, stupor and tremors
Treatment recommended for 3 months

18. Demodex Treatment for generalized demodex
Bravecto (fluralaner) - off label
12 week oral tablet given once
Oral antibiotics given for secondary infection

19. Demodex Treatment
Approved topical dip Off labe use - SQ or PO

20. DEMODEX *** Client Info Many animals outgrow demodex as they age
Not contagious to humans
Tx does not completely remove mites
Strongly recommend OHE with treatment or relapse may occur with heat cycles
Generalized form can be fatal.

21. CASE #5

22. Sarcoptic mange- Scabies

23. Sarcoptic Mange *** Species specific
Burrows under skin – stratum corneum
Hypersensitivity reaction causes extreme pruritis

24. SARCOPTES Clincal Signs Red crusty lesions on ears, elbows and trunk
Intensely pruritic
Progressively more severe

25. Sarcoptic mange Treatment: relatively easily killed
Mitaban (Amitraz): extralabel use for sarcoptes
Ivermectin injections: extralabel use
Revolution (selamectin) – approved
Lime Sulfur Dips
Client Info – highly contagious to other dogs and humans