“…Formalin-preserved stool samples and the modified Ziehl-Neelsen carbol-fuchsin staining of formalin-ether concentrates were used for the recovery and identification of C. parvum oocysts. 21 Helminth ova counts were made using the standard smear egg count technique, 22 and the results were expressed as eggs per gram feces (epg). The helminth intensity was classified as follows: Ascaris lumbricoides, Ͻ 10,000 to Ͼ 20,000 epg; Trichuris trichiura, Ͻ 5,000 to Ͼ 10,000 epg, and hookworm Ͻ 2,000 to Ͼ 5,000 epg were considered light, moderate, and heavy infections, respectively.…”