Difference between revisions of "Taenia hydatigena"

Revision as of 14:43, 7 June 2010

the most important species
final host
- dog
- alimentary tract
intermediate host
- ruminant, horse, or pig
life cycle is completed when the carnivore eats the tissues of the intermediate host containing the cysts
the intermediate stage - Cysticercus tennuicollis
- fluid filled cysts on the surface of the liver and in the peritoneal cavity

NB: other Taenia species have muscle and brain as preferred sites in the intermediate hosts

Some can infect humans - zoonoses

@@ Line 1: / Line 1: @@
-{{OpenPagesTop}}
+*the most important species
-{{Taxobox
+*final host
-|name               = Taenia hydatigena
+**dog
-|kingdom            = Animalia
+**alimentary tract
-|phylum             = Platyhelminthes
+*intermediate host
-|class              = [[Cestodes|Cestoda]]
+**ruminant, horse, or pig
-|sub-class          =
+*life cycle is completed when the carnivore eats the tissues of the intermediate host containing the cysts
-|order              = [[Cyclophyllidea]]
+*the intermediate stage - Cysticercus tennuicollis
-|super-family       =
+**fluid filled cysts on the surface of the [[Liver - Anatomy & Physiology|liver]] and in the [[Peritoneal cavity - Anatomy & Physiology|peritoneal cavity]]
-|family             = [[Taeniidae]]
+NB: other Taenia species have muscle and brain as preferred sites in the intermediate hosts
-|sub-family         =
-|genus              = Taenia
-|species            = ''T. hydatigena''
-}}
-Also known as: '''''Taenia marginata — Cysticercus tenuicollis
-==Hosts==
+Some can infect humans - zoonoses
-'''Intermediate host''':  Sheep, horse, cattle, pig and deer.
-'''Definitive host''': Dog, fox, weales, polecat, and stoat.
-==Identification==
-''T. marginata'' is a [[Cestodes|cestode]], and large tapeworm around 5m in length.  It has a large scolex, with two rows of hooks.  The eggs are oval.
-==Life Cycle==
-The intermediate host is infected through the ingestion of tapeworm eggs.
-Sheep are the most frequent intermediate host, but the '''cysticerci''' can establish in other animals. The '''oncosphere''' hatches out of the egg in the small intestine of the sheep.  Oncospheres travel to the hepatic portal system, where they transform to cysticerci. The grow rapidly while migrating through liver parenchyma, then to the peritoneal cavity. The cysticerci in the peritoneal cavity are approximately 8cm long; often found adhering to the omentum. Usually, liver damage heals, forming fibrotic tracts, which leads to condemnation at meat inspection. If a sheep swallows a whole proglottid, it leads to liver damage, and ultimately death (“cysticercosis hepatica”), but this is a rare event affecting a single animal in a flock.
-The definitive host is then infected through ingestion of the infected intermediate host.
-{{Learning
-|flashcards = [[Cestodes_Flascards|Cestodes Flashcards]]
-|literature search = [http://www.cabdirect.org/search.html?q=title:(%22Taenia+marginata%22)+OR+title:(%22Taenia+hydatigena%22)+OR+(%22Cysticercus+tenuicollis%22) ''Taenia hydatigena'' publications]
-|videos = [https://wikivet.mediacore.tv/media/ovine-liver-with-hepatitis-cysticercosa-potcast Ovine liver with hepatitis cysticercosa potcast]<br>[https://wikivet.mediacore.tv/media/ovine-mesentery-with-tapeworm-cysts-potcast Ovine mesentery with tapeworm cysts]
-}}
-==References==
-Taylor, M.A, Coop, R.L., Wall,R.L. (2007) '''Veterinary Parasitology''' ''Blackwell Publishing''
-{{review}}
-{{OpenPages}}
 [[Category:Liver Cestodes]][[Category:Taeniidae]]
-[[Category:Dog Parasites]]
-[[Category:Expert_Review]]

Difference between revisions of "Taenia hydatigena"

Revision as of 14:43, 7 June 2010

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