Diarrhea due to parasites particularly Cryptosporidium parvum in great Cairo, Egypt.

A total of 110 stool samples from out and in-patients from different areas in Great Cairo suffering from diarrhea were examined for parasitic causes. Stool samples were subjected to the direct wet smear method and Sheather's sugar flotation and stained with Giemsa and/or modified Ziehl-Neelsen. Also, stool samples were cultured on agar plates for strongyloidiasis.