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Redirected page to Category:Trichinelloidea
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#REDIRECT[[:Category:Trichinelloidea]]
 
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{{toplink
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|backcolour =
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|linkpage =Parasites
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|linktext =PARASITES
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|pagetype=Bugs
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|sublink1=Nematodes
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|subtext1=NEMATODES
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}}
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[[Image:Trichuris ovis sheep.jpg|thumb|right|150px|''Trichuris ovis'' from sheep faeces - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
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[[Image:Trichuris ovis.jpg|thumb|right|150px|''Trichuris ovis'' in caecum - Supplied by Biomed Image Archive]]
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[[Image:Trichuris vulpis.jpg|thumb|right|150px|''Trichuris vulpis'' - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine]]
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[[Image:Capilaria.jpg|thumb|right|150px|''Capilaria'' - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine]]
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[[Image:Trichinella spiralis H and E.jpg|thumb|right|150px|''Trichinella spiralis'' stained with H and E - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine]]
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[[Image:Trichinella spiralis.jpg|thumb|right|150px|''Trichinella spiralis'' - Courtesy of the Laboratory of Parasitology, University of Pennsylvania School of Veterinary Medicine]]
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The common feature of members of this group is that the oesophagus is a column of doughnut-shaped cells. They are only distantly related to the other nematode groups and so drugs developed primarily for controlling strongyle and ascarid worms are often less effective against these.
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There are just three genera of veterinary importance:
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#''Trichuris'' (the whipworms)
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#''Capillaria''
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#''Trichinella''
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== ''Trichuris'' Species ==
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*The whipworms have a stout posterior end and a long narrow neck, which is superficially inserted into the caecal mucosa
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*Eggs are brown, barrel-shaped, with a plug at either end, and can survive for up to 12 years
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*The infective stage is the embryonated egg.
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*The life-cycle is direct
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*After the egg is swallowed, the larva initially forms a mucosal nodule before emerging into the lumen
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== ''Capillaria'' ==
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*Similar to ''Trichuris'', but the difference between anterior and posterior ends of the body is not so pronounced
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*Some species have direct life-cycles, others use intermediate or transport hosts
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*Species have different predilection sites
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*Of greatest importance in birds, although species do occur in the urinary bladder and liver of cats and dogs
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== ''Trichinella'' ==
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*This is known as the "worm that thinks its a virus"
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*It is an important zoonosis
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*It is covered in greater detail
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[[Trichuris]]
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*''Capillaria aerophila'' in [[Respiratory Parasitic Infections - Pathology#Capillaria aerophila|respiratory disease]] of cats and dogs
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*''Trichinella'' in [[Muscles Inflammatory - Pathology#Nematodes|myositis]]
 
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