The prevalence of hepatitis C virus [HCV] RNA in 80 patients with chronic renal diseases was determined. Two sets of primers from the non-coding region of the hepatitis C virus were used. The products [188 bp] amplified by polymerase chain reaction were visualized by 2% agarose gel electrophoresis stained with ethidium bromide. The patients were classified into four groups. Group I comprised 40 adult patients with end-stage renal disease, 31 of whom were positive for HCV-RNA [77.5%] ; group II, 22 children with glomerulopathies, 15 of whom were positive [68.2%] ; group III, 9 children with chronic renal failure of unverified etiology, 6 of whom were positive [66.6%] ; group IV, 9 children with chronic renal failure due to obstructive uropathy of whom 3 [33.3%] were positive. We conclude that HCV may infect a high percentage of patients with chronic renal failure or renal parenchymatous disease

Cryptosporidium is an obligatory intracellular protozoan that parasitizes gastrointestinal epithelial cells. The parasites develop principally in the jejunum and ileum under the brush border of the epithelial cells [13] . Globally, the number of reported cases of