Figure 1: Frequency of intestinal parasites based on microscopic analysis of the fecal samples taken in Morelos, Mexico. Blastocystis was the only parasitic infection found in 67% of individuals and in 7% in coinfection with other parasites. Bsp: Blastocystis; OP: parasites other than Blastocystis; BSP + OP: coinfection of Blastocystis and other parasites; Negative: no parasite found. Among OP: Chm, Chilomastix mesnili; Ec, Entamoeba coli; En, Endolimax nana; Hn, Hymenolepis nana; Gl, Giardia lamblia; Ib, Iodamoeba bütschlii.