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| ===Papular=== | | ===Papular=== |
| ====Orf==== | | ====Orf==== |
− | *[[Parapox virus]] infection. | + | *[[Poxviridae|Pox]] infection |
− | *Quite a common '''zoonotic''' disease. | + | *Quite a common '''zoonotic''' disease |
− | *In man lesion grows slowly over weeks. Heals but takes a long time, characteristically in angle of thumb and 1st finger.
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| =====Clinical===== | | =====Clinical===== |
− | *In sheep produces a proliferative nodule/papular mass on [[Lips - Anatomy & Physiology|lips]]. | + | *In sheep produces a proliferative nodule/papular mass on [[Lips - Anatomy & Physiology|lips]] |
− | *In flocks in which it is endemic it is seen in lamb. | + | *In flocks in which it is endemic it is seen in lamb |
− | *If flock is non-immune seen in ewes too but much worse in lambs (may spread to inside of mouth). | + | *If flock is non-immune seen in ewes too but much worse in lambs (may spread to inside of mouth) |
− | *Can spread to udder of ewe. | + | *Can spread to udder of ewe |
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| =====Pathology===== | | =====Pathology===== |
− | *Poxvirus infections produce local infection of [[prickle cells]] in epithelium with proliferation of cells and formation of papule followed by ulceration / necrosis and covered by necrotic epithelium. | + | *Poxvirus infections produce local infection of [[prickle cells]] in epithelium with proliferation of cells and formation of papule followed by ulceration / necrosis and covered by necrotic epithelium |
− | *Eventually scabs form and crust drops off. | + | *Eventually scabs form and crust drops off |
− | *Scabs - very infectious ( N.B.if touch -> catch it). | + | *Scabs - very infectious ( N.B.if touch -> catch it) |
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− | =====Diagnosis=====
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| ====Bovine Papular stomatitis==== | | ====Bovine Papular stomatitis==== |