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[[Image:Isospora suis oocyst.jpg|thumb|right|150px|''Isospora suis'' oocyst from pig faeces - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
*Many species of ''Eimeria'' and ''Isospora''
*Only ''Isospora suis'' is of clinical pathogenic importance
*Causes sporadic, serious and sometimes fatal disease in unweaned piglets
**Causes profuse [[Intestine Diarrhoea - Pathology|diarrhoea]]
*Very short 1 week prepatent period
*[[Intestine Diarrhoea - Pathology|Diarrhoea]] starts before oocysts are shed in faeces
**Ante-mortem diagnosis is difficult
*Death usually occurs after parasites have left the host
**Post-mortem diagnosis difficult
**''Isospora'' infections are '''self-limiting'''
[[Category:Coccidia]][[Category:Pig]]