Parasitic skin disease in small animals 2 Flashcards
Describe the appearance and location of Demodex gatoi
- Broad, short abdomen
- On skin surface
What clinical signs is D. gatoi a key differential for?
- Pruritus
- Overgrooming
- Bilaterally symmetrical alopecia
What makes diagnosis of D. gatoi more difficult?
Cats grooming a lot (esp. if pruritic)
Describe the methods used in the diagnosis of D. gatoi
- Tape strip
- Skin scrapes
- Sample areas where cat cannot lick
- Sample in contacts-
- Faecal exam for ingested mites
- Response to treatment
Describe the treatment for D. gatoi
- Localised form may be self limiting
- Generalised generally often unrewarding to treat and no licensed product
- Need to address and correct underlying cause if possible
- 2% lime sulphur baths, sarolaner, flurolaner, off label weekly doramectin reported as effective
Describe the clinical signs of tick infestation
- Erythema, mild pruritus
- Inflammatory reaction if mouthparts incompletely removed
- Often no clinical signs
Describe the treatment for ticks
- Manual removal
- Acaricides: permethrin, flumethrin, fipronil, deltamethrin, moxidectin, amitraz, isoxazolines
- Repellents: permethrin, imidacloprid/flumethrin collar (kills and repels)
What diseases is Ixodes ricinus a vector of?
- Borrelia burgdorferi
- Louping ill
- Ehrlichia
- Anaplasma
- Babesia in cattle
What diseases is Haemaphysalis punctata a vector of?
B. gibsoni
What disease is Dermacentor reticulatus a vector of?
Babesia canis
What diseases is Rhipicephalus sanguineus a vector of?
- B. canis and vogeli
- Ehrlichia canis
- Rickettsia
- Anaplasma
Name the 2 main bird mites and explain how these can be distinguished from one another
- Ornithonysus sylvarium
- Dermanyssus gallinae
- Distinguish by where they are found - D. gallinae only jump onto host to fed and are not usually found on the host, need to look in the environment
What species are suseptible to Dermanyssus gallinae?
All birds, dogs, horses and people
