| Parasites | S1 (n = 80) | S2 (n = 52) | Total (n = 132) |
| Pathogenic spp. | N | N | N |
| Giardia intestinalis* | 18 | 3 | 21 |
| Dientamoeba fragilis* | 9 | 3 | 12 |
| Enterobius vermicularis* | 7 | 2 | 9 |
| Hymenolepis nana | 0 | 0 | 0 |
| Suspicious pathogenic spp. |
|
|
|
| Blastocystis hominis* | 5 | 1 | 6 |
| Entamoeba histolytica | 4 | 3 | 7 |
| Non-pathogenic spp. |
|
|
|
| Entamoeba coli | 1 | 0 | 1 |
| Endolimax nana | 1 | 0 | 1 |
| Iodamoeba bütschlii | 0 | 0 | 0 |
| TOTAL* | 45 (56) | 12 (23) | 59 (44.6) |