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− | {{unfinished}}
| + | #REDIRECT[[:Category:Coccidia]] |
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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=Protozoa
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− | |subtext1=PROTOZOA
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− | }}
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− | <br>
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− | ==''Eimeria'' spp.==
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− | ==''Isospora'' spp.==
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− | ==Coccidia of Poultry==
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− | ==Other Avian Coccidia==
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− | ==Coccidia of Sheep==
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− | *Different species of ''Eimeria'' occurs in sheep and goats
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− | ==Coccidia of Goats==
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− | *Many ''Eimeria'' species
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− | *2 ''Eimeria'' are pathogenic
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− | **Cause [[Intestine Diarrhoea - Pathology|diarrhoea]] and a decreased growth rate
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− | *Different species of ''Eimeria'' occurs in sheep and goats
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− | ==Coccidia of Horses==
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− | *Only one atypical ''Eiemria''
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− | *Forms large subepithelial gametocytes in villi
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− | *Large, dark coloured oocysts
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− | **Approximately 12μm
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− | *Occasionally causes [[Intestine Diarrhoea - Pathology|diarrhoea]]
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− | ==Coccidia of Pigs==
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− | *Many species of ''Eimeria'' and ''Isospora''
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− | *Only ''Isospora suis'' is of clinical pathogenic importance
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− | *Causes sporadic, serious and sometimes fatal disease in unweaned piglets
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− | **Causes profuse [[Intestine Diarrhoea - Pathology|diarrhoea]]
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− | *Very short 1 week prepatent period
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− | *[[Intestine Diarrhoea - Pathology|Diarrhoea]] starts before oocysts are shed in faeces
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− | **Ante-mortem diagnosis is difficult
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− | *Death usually occurs after parasites have left the host
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− | **Post-mortem diagnosis difficult
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− | **''Isospora'' infections are '''self-limiting'''
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− | ==Coccidia of Dogs==
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− | *2 common and 2 less common ''Isospora'' species
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− | *Occasionally can cause disease
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− | *Little pathogenicity
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− | *Even if faecal oocyst count is high, other causes of [[Intestine Diarrhoea - Pathology|diarrhoea]] should be looked for
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− | ==Coccidia of Cats==
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− | [[Image:Coccidia.jpg|thumb|right|150px|Coccidia in Cat Faeces - Joel Mills]]
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− | *2 common ''Isospora'' species with little clinical significance
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− | *Oocysts in faeces have to be distinguised from those of ''Toxoplasma'' (smaller) and ''Sarcocytis'' (sporulated or naked sporocyts in faeces)
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− | ==Coccidia of Rabbits==
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− | *''Besnoitia bennetti'' in [[Respiratory Parasitic Infections - Pathology#Besnoitia bennetti|larynx]] of horses
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− | *''Hepatozoon americanum'' and subclinical ''H. canis'' in [[Bones Hyperplastic and Neoplastic - Pathology#Hepatozoon|periosteal bone formation]]
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− | **Both are Tick borne diseases
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− | ***''H. canis'' – ''Rhipicephalus sanguineus''
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− | ***Ticks become infected by ingesting a blood meal containing macrophages and neutrophils infected with the parasite gamonts -> sexual replication in the gut of the tick -> oocysts containing infective sporozoites -> dogs ingest the tick schizogony occurs in numerous tissues.
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