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| + | #REDIRECT[[:Category:Crustacea]] |
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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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− | }}
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− | <br>
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− | ==Introduction==
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− | ==''Linguatula serrata''==
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− | [[Image:Linguatula taenioides.jpg|right|thumb|150px - copyright Cooper Curtice (Washington, Government Printing Office, 1890) Wikimedia Commons]] | |
− | *Also known as the 'tongue worm'
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− | '''Recognition'''
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− | *Tongue-like appearance
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− | **Expanded anteriorly
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− | *Adults are over 10cm in length
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− | **Females measure betwen 30-130mm in length
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− | **Males measure up to 20mm in length
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− | *Transversely striated
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− | '''Life Cycle'''
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− | *6 month life cycle
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− | *Adults inhabit the nasal passages of dogs and sometimes cats
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− | *Eggs are expelled by coughing and sneezing or are passed out with the faeces
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− | *Herbivorous intermediate hosts ingest the eggs
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− | *Eggs hatch in the herbivore intestine
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− | *Larvae migrate to the mesenteric lymph nodes and encyst to become infective nymphs
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− | **Cysts measure 1mm in diameter
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− | *When a dog eats infeced uncooked viscera the life cycle is completed
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− | *Infective nymphs migrate from the viscera during chewing and crawl up into the nasal cavity via the soft palate
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− | *Infective nymphs mature to adults in the nasal cavities and can survive for a year in the final host
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− | '''Pathogenesis'''
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− | *Causes [[Nasal Cavity Inflammatory - Pathology#Infectious causes of rhinitis|rhinitis]]
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− | *Heavy infection leads to coughing, sneezing and nasal discharge
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− | ==Sea Lice==
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− | ==Links==
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− | [[Respiratory Parasitic Infections - Pathology#Linguatula serrata|Pathology of ''Linguata serrata'' in the nasal passages]]
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