| Pathogen | Drinking Water | Case Reports (Patients) |
| Protozoa | References | |
| Cyclospora cayetanensis | Khalifa et al. [35] | Shehata et al. [32] |
| Blastocystis hominis | Khalifa et al. [35] | Shehata et al. [32] |
| Microsporidia | Amer [36] | Shehata et al. [32] |
| Balantidium coli | Amer [36] | Abaza et al. [40] |
| Sarcocystis lindemanni | Amer [36] | Abdel Mawla [41] |
| Cystoisospora belli | Elshazly et al. [37] | Shehata et al. [32] |
| Isospora belli | Elshazly et al. [37] | Abdel-Hafeez et al. [42] |
| Isospora hominis | Elshazly et al. [37] | El-Shazly et al. [34] |
| Helminthes | ||
| Capillaria philippinensis | Attia et al. [38] | Youssef et al. [43] |
| Ancylostoma duodenale | Miller et al. [39] | El-Shazly et al. [34] |
| Ascaris lumbricoides | Miller et al. [39] | El-Shazly et al. [34] |