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  • Title: Intestinal spore-forming protozoa among patients suffering from chronic renal failure.
    Author: Ali MS, Mahmoud LA, Abaza BE, Ramadan MA.
    Journal: J Egypt Soc Parasitol; 2000 Apr; 30(1):93-100. PubMed ID: 10786022.
    Abstract:
    Cryptosporidium parvum, Isospora belli, Cyclospora cayetanensis and Microsporidia are four intestinal spore-forming protozoa that cause diarrhoea in immuno-competent individuals and immuno-suppressed patients. Fresh stool samples were obtained from 120 patients suffering from CRF and attending the Dialysis Unit of Zagazig University Hospital. Also, stool samples were obtained from 40 immuno-competent individuals complaining of diarrhoea (control group). The stool samples were examined by direct smear and formol-ether concentration methods then stained by Giemsa, Modified Ziehl Neelsen (MZN) and Aniline carbol methyl violet stains. The four intestinal spore-forming protozoa were detected in 40/120 (33.3%) of patients with CRF and in 2/40 (5.0%) of the control group with a statistically highly significant difference (P < 0.001). C. parvum, Microsporidia, C. cayetanensis and I. belli were detected in 18/120 (15%), 10/120 (8.3%), 9/120 (7.5%) and 3/120 (2.5%), respectively. The four protozoa were found as mixed infections with other pathogens or as single infections confirming their role alone as a cause of diarrhoea. MZN stain was the most efficient simple, and not expensive.
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