| Sewage site | Intestinal parasites found |
| Site A | Hymenolepis nana, Strongyloides stercoralis, |
| Site B | Negative for any ova or parasite |
| Site C | Hymenolepis nana, Strongyloides stercoralis, Ascaris lumbricoides. Schistosoma mansoni, Taenia species and Amoeba species |