| Line 5: |
Line 5: |
| | | | |
| | [[Psoroptes|''Psoroptes'']] | | [[Psoroptes|''Psoroptes'']] |
| − |
| |
| | | | |
| | [[Chorioptes bovis|''Chorioptes bovis'']] | | [[Chorioptes bovis|''Chorioptes bovis'']] |
| | | | |
| | + | [[Otodectes cynotis|''Otodectes cynotis'']] |
| | | | |
| − |
| |
| − | ===''Otodectes cynotis''===
| |
| − |
| |
| − | *Causes [[Parasitic skin infections - Pathology#Otodectic mites|otodectic skin infestation]]
| |
| − |
| |
| − | *Commonest mange of dogs and cats in the world
| |
| − |
| |
| − | *Inhabits the inner ear
| |
| − |
| |
| − | *Also found in the fox and the ferret
| |
| − |
| |
| − | *Closed keratinous bars ('''apodemes''') on ventral surface
| |
| − |
| |
| − | *Life cycle takes '''3 weeks'''
| |
| − |
| |
| − | *Feeds on ear debris
| |
| − |
| |
| − |
| |
| − | '''Pathogenesis'''
| |
| − | *The majority of cats harbour the mites, however only a few show symptoms
| |
| − | **Transmission occurs whilst kittens are suckling
| |
| − |
| |
| − | *Common cause of [[Otitis Externa - Small Animal|otitis externa]] in dogs
| |
| − |
| |
| − | *Brown waxy exudate produced
| |
| − |
| |
| − | *Can lead to secondary infection
| |
| − |
| |
| − | *Clinical signs are apparent
| |
| − | **Head shaking
| |
| − | **Ear scratching
| |
| − | **Aural haematomata
| |
| − |
| |
| − |
| |
| − | '''Treatment'''
| |
| − | *Acaracidal ear drops
| |
| − | **Massage base of ear to disperse drops after treatment
| |
| − |
| |
| − | *Most treatments need to be repeated in 10-14 days to kill newly hatched mites
| |
| − |
| |
| − | *Selamectin can be used as a spot-on treatment
| |
| − | **Prolonged duration of action
| |
| − |
| |
| − | *Treat all in-contact animals
| |
| − | **These may be asymptomatic carriers
| |
| | | | |
| | | | |