All samples were mixed, split and processed using both the new technique (OT) and a modified double centrifugation technique (MDCF) using Sheather’s sugar (sp.g.=1.27). Samples were scored as positive if any parasite egg or cyst was detected. Eggs per gram were determined for all helminth eggs, while a qualitative system was used to score the relative intensity of Giardia cysts for all samples.