A. Unsporulated oocysts in feces detected with flotation examination; B. Sporulated oocysts in feces detected with flotation examination; C. Severe and diffuse noduler hyperplasia (arrows) in intestine serosa; D. Severe and diffuse noduler hyperplasia (arrows) in lumen of duodenum; E. There were macrogamont (arrow head), microgamont (arrow), hyperemi (h), neutrophil and eosinophil infiltration with severe plasmacyte and lymphocyte (asterisk); F. There were macrogamont (arrow head), microgamont (arrow) and oocyst stages of E. arloingi (asterisk) in intestinal epithelium