|
|
| Line 1: |
Line 1: |
| | | | |
| − | ===Pathogenesis===
| |
| − | *Economically important ectoparasite of sheep
| |
| − |
| |
| − | *Causes '''sheep scab'''
| |
| − | **Wool loss, restlessness, biting, scratching of infested area and decreased productivity through decreased weight gain
| |
| − | **Usually seen in '''late autumn''' and '''early winter''' (although may also occur in late summer)
| |
| − | **Population numbers decline after shearing due to a change in the micro-climate, then build up again as the fleece grows
| |
| − | **'''Notifiable in UK'''
| |
| − |
| |
| − | *Mites found under scabs and in skin folds
| |
| − |
| |
| − | *Lesions most common on flanks, neck, back and shoulders
| |
| − |
| |
| − | *Causes pruritic condition of cattle
| |
| − |
| |
| − | *Active in keratin layer
| |
| − |
| |
| − | *Mouthparts abrade the skin
| |
| − |
| |
| − | *Antigenic material in mite faeces can lead to hypersensitivity reactions
| |
| − |
| |
| − | ===Diagnosis===
| |
| − | *Skin scraping
| |
| − |
| |
| − | *KOH added
| |
| − |
| |
| − | *Warm slide over a bunsen flame
| |
| − |
| |
| − | *Examine under a microscope
| |
| − |
| |
| − |
| |
| − | ===Treatment===
| |
| − | *Sheep
| |
| − | **Plunge dipping; no less than 1 minute and must dip head at lease once
| |
| − | **Can treat with avermectins or milbemycins by injection
| |
| − |
| |
| − | *Cattle, horses and rabbits
| |
| − | **No licensed product for horses in the UK
| |
| − | **Cattle and rabbits can be treated with avermectins, milbemycins or topical acaricides
| |
| − |
| |
| − | [[Category:To_Do_-_Clinical]]
| |
| − | '''Bold text'''
| |