Name
Greek: isos = identical; sporos = seed, capsule. Latin: sus = pig, boar.
Geographic Distributions/Epidemiology
Worldwide; in the case of piglets, eventually epidemics involve up to 80 % of the animals in a farm. Due to the short prepatent period of 5 days and the extremely quick sporulation of the oocysts within 15 h at high temperatures, a quick progress of the epidemic occurs in stables.
Morphology/Life Cycle
The oocysts (17–22 μm × 17–19 μm) appear colorless pale. The development (schizogony until formation of oocysts) occurs in the epithelial cells of the jejunum and ileum of pigs.
Symptoms of Disease
Catarrhalic enteritis (often with lysis of the epithelium layer) resulting in villous atrophy occurs within 9 days after infection. This all together results in a non-hemorrhagic diarrhea with subsequent reduced nutrient absorption, leading to weight loss and stunted growth. High general morbidity or even death of very young piglets may occur.
Diagnosis
Microscopical evaluation...
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Further Reading
Mundt HC et al (2007) Efficacy of various anticoccidials against experimental porcine neonatal isosporosis. Parasitol Res 100:401–411
Stuart BP, Lindsay DS (1986) Coccidiosis in swine. Vet Clin North Am Food Anim Pract 2:455–468
Worlicek HL et al (2009) Porcine coccidiosis – investigations on the cellular immune response against Isospora suis. Parasitol Res 105:5151–5155
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Mehlhorn, H. (2016). Isospora suis . In: Mehlhorn, H. (eds) Encyclopedia of Parasitology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-43978-4_3977
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DOI: https://doi.org/10.1007/978-3-662-43978-4_3977
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Publisher Name: Springer, Berlin, Heidelberg
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