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