Table 3. Prevalence of Schistosoma mansoni and other helminths among schoolchildren obtained using Kao-Katz and Ritchie’s concentration techniques around Lake Tana, northwest Ethiopia, 2021.
| Parasites detected | Ritchie’s concentration No. (%) | Kato-Katz smear No. (%) | Combined No. (%) |
|---|---|---|---|
| Schistosoma mansoni | 165 (24.2) | 220 (32.3) | 238 (34.9) |
| Ascaris lumbricoides | 34 (5) | 47 (6.9) | 64 (9.4) |
| Hookworm | 73 (10.7) | 54 (7.9) | 77 (11.3) |
| Trichuris trichiura | 5 (0.7) | 6 (0.9) | 7 (1.0) |
| Hymenolepis nana | 15 (2.2) | 10 (1.5) | 19 (2.8) |
| Strongyloides stercoralis | 2 (0.3) | - | 2 (0.3) |
| Enterobius vermicularis | 4 (0.6) | 2 (0.3) | 5 (0.7) |
| Taenia species | 1 (0.1 | - | 1 (0.1) |