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Isospora belli - Coggle Diagram
Isospora belli
- Described by Virchow in 1860
- Named by Wenyen in 1923
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Morphology
- single form - oocyst
- oocyst size 20 to 30 micrometre in length and 10 to 19 micrometre breadth
- Ellipsoidal or elongated ovoid shape
- Each oocyst surrounded by a thin smooth two layered cyst wall.
- Oocyst mature outside the body.
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Habitat
Large and small intestine 
Distribution
- Common in tropical and subtropical countries
- Name belli means war named associated with war during first world war
clinical features
- diarrhoea ( not bloody and self limiting)
- Abdominal discomfort, mild fever malabsorption
- Diarrhoea lasting several years for particularly HIV patients
Treatment
- immunodeficient patients treat diarrhoea with cortimoxazole .
- Patients intolerant to sulfonamides ,pyrimethamine is given.
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