To obtain lesion scores, one section from each of the 10small intestinal sites was scored on a scale from o to 5 for the following 11 lesions: villus stunting, villus fusion, presence of degenerate cells in the lamina propria, presence of leucocytes in lacteals, cuboidal enterocytes, exfoliated enterocytes, vacuo- lated enterocytes, abnormally arranged enterocytes and presence of neutrophilic polymorphonuclear leucocytes in the lamina propria, crypts and intestinal lumen.