Difference between revisions of "Onchocerca spp."

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*In [[Onchocerciasis|skin infections]]
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Horses:
 
=== ''ONCHOCERCA'' SPECIES ===
 
==== General ====
 
*One species, ''O. cervicalis'' (= ''O.reticulata'').
 
*Large filarial nematode (<30cm); ligamentum nuchae (and limb connective tissue).
 
 
 
==== Life-Cycle ====
 
*Indirect LC, similar to that fo cattle ''Onchocerca'' (which are different species).
 
*Intermediate host = midge (''Culicoides'' species).
 
 
 
==== Pathogenicity ====
 
*Limited significance.
 
*Localised hypersensitivity (oedematous) reaction - to dead/dying microfilariae along ventral abdominal midline (sometimes occurs after ivermectin treatment for general worm control).
 
*Corneal opacity (very rare in UK) - associated with microfilariae.
 
  
 
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[[Category:Filarioidea]]
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|linkpage =Parasites
[[Category:Horse_Nematodes]]
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|linktext =PARASITES
[[Category:To_Do_-_Parasites]]
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|sublink1=Filarioidea
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|subtext1=FILARIOIDEA
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*In [[Parasitic skin infections - Pathology#Onchocerciasis|skin infections]]

Revision as of 10:40, 25 September 2008



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PARASITES
FILARIOIDEA