Table 2 Proportion of samples positive for sorbitol non-fermenting E. coli per sample types.
Sample type | Source lake | Number of samples | Positive n (%) |
|---|---|---|---|
Water | Hora-Arsedi | 30 | 3 (30) |
Babogaya | 30 | 1 (10) | |
Koftu | 30 | 4 (40) | |
Koka | 30 | 1 (10) | |
Dambel | 30 | 1 (10) | |
Fish samples | Babogaya | 90 | 0 (0) |
Hora-Arsedi | 90 | 1 (1.1) | |
Koftu | 90 | 0 (0) | |
Koka | 90 | 7 (7.8) | |
Dambel | 90 | 0 (0) |
Age (years) | Number | Positive n (%) | |
|---|---|---|---|
Human stool | Children under 5 | 12 | 1 (8.3) |
Young (5–17) | 19 | 2 (10.5) | |
Youth (18–30) | 49 | 4 (8.2) | |
Adults (≥ 31) | 70 | 4 (5.7) |