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Dermatophilosis (view source)

Revision as of 14:09, 28 July 2010

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| Also known as:
 
| Also known as:
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| '''Cutaneous streptothrichosis'''<br> '''Lumpy wool''' - sheep<br>'''Strawberry foot rot'' - sheep'<br>'''Rain Scald''' - horses
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| '''Cutaneous streptothrichosis'''<br> '''Lumpy wool''' - sheep<br>'''Strawberry foot rot''' - sheep
 
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Lesions commonly occur following heavy rainfall and commonly affects the dorsum of animals. Any previous trauma or damage to the skin can predispose to infection. Blood-sucking insects are also thought to be involved in transmission.
 
Lesions commonly occur following heavy rainfall and commonly affects the dorsum of animals. Any previous trauma or damage to the skin can predispose to infection. Blood-sucking insects are also thought to be involved in transmission.
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===Equine dermatophilosis===
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<big>'''[[Dermatophilosis - Horse|Equine dermatophilosis]]
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'''[[Dermatophilosis - Sheep|Ovine dermatophilosis]]
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[[Dermatophilosis - Horse]]
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</big>
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===Ovine dermatophilosis===
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Also see <big>'''[[Dermatophilosis|General Dermatophilosis]]'''</big>
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Three clinical syndromes have been documented:
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*Lumpy wool
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*Strawberry foot rot
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*Fleece rot
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Fleece infection is known as lumpy wool. Infection passes from ewe to lamb during suckling and hence lesions first appear on the head which leads to infection on the trunk. In wet weather can result in high morbidity outbreaks. Large areas of the fleece can be affected where crusts of varying thickness become evident. On haired skin, crusts can become very thick and can form horn like structures. In severe infecions of rams the scrotum and surrounding skin can become affected.
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Strawberry foot rot is a condition affecting the skin from the coronet to the carpus or hock. The disease occurs as a result of [[Orf|Orf]] and Dermatophilus infection. Scabs get rubbed away leaving the granulating surface which resembles a strawberry.
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Fleece rot
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A condition thought to be assosiated with dermatophilosis, but also involves pigment producing bacteria which stains the wool a characteristic yellow colour. Predisposes to [[Blowfly Strike| fly strike]].
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===Bovine dermatophilosis===
 
===Bovine dermatophilosis===
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Lesions may resolve within weeks if dry weather or prolonged wetting of infected areas can lead to secondary bacterial infection which can result in limb [[Oedema - Pathology|oedema]] and cellulitis.
 
Lesions may resolve within weeks if dry weather or prolonged wetting of infected areas can lead to secondary bacterial infection which can result in limb [[Oedema - Pathology|oedema]] and cellulitis.
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==Treatment==
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Farm animals:
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Bring affected animals into a dry environment. Investigate any underlying problems which may predispose to the infection.
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Antibiotics can be given intramuscularly and typically work following one dose. However if signs do not resolve a 5 day course should be administered. [[Penicillins|Penicillin]] and [[Aminoglycosides#streptomycin|streptomycin]] are good choices for this disease.
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Additionally Dips containing 0.2% Copper Sulphate or 0.5% Zinc sulphate can be effective.
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**Hyperplastic superficial perivascular dermatitis
 
**Hyperplastic superficial perivascular dermatitis
 
**Multilaminated crusts, alternating keratin and inflammatory cell layers
 
**Multilaminated crusts, alternating keratin and inflammatory cell layers
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==Treatment==
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Farm animals:
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Bring affected animals into a dry environment. Investigate any underlying problems which may predispose to the infection.
  −
Antibiotics can be given intramuscularly and typically work following one dose. However if signs do not resolve a 5 day course should be administered. [[Penicillins|Penicillin]] and [[Aminoglycosides#streptomycin|streptomycin]] are good choices for this disease.
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Additionally Dips containing 0.2% Copper Sulphate or 0.5% Zinc sulphate can be effective.
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==Prognosis==
 
==Prognosis==
Bara
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