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| | ==[[Fly Dermatosis]]== | | ==[[Fly Dermatosis]]== |
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| − | ===Myiasis=== | + | ===[[Myiasis]]=== |
| − | *Infection by dipterous flies in moist body areas (''eg.'' perineum)
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| − | *Commonly affects sheep - [[Bacterial skin infections - Pathology#Ovine fleece rot|ovine fleece rot]]
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| − | *Grossly:
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| − | **Matted hair or wool, may be in wounds
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| − | **Multiple holes or ulcers
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| − | **Malodour
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| − | *May result in death due to septicaemia or toxaemia
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| − | *'''Cuterebra myiasis'''
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| − | **Caused by ''Cuterebra'' sp
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| − | **Young animals come into contact with eggs on stones or plants
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| − | **Nodules with larvae in subcutis + respiration openings to surface
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| − | *'''Hypoderma myiasis'''
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| − | **Caused by ''Hypoderma lineatum'' or ''H. bovis''
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| − | **Mainly affects cattle
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| − | **Skin of legs is penetrated -> migration through [[Oesophagus - Anatomy & Physiology|oesophagus]] or vertebral canal to subcutis of back
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| − | **Cause subcutaneous nodules with respiration openings
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| − | **Larvae in cavity with fibrin and eosinophils surrounded by granulation tissue with eosinophil clusters
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| − | *'''Screwworm myiasis'''
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| − | **Occurs in Africa, Asia, Central and South America
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| − | **Larvaae are deposited in wounds
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| − | **Penetrate and liquify tissue
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| | ==Helminths== | | ==Helminths== |