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| No. and (%) | |||
|---|---|---|---|
| Subjects | Investigated | PCR-positive (fecal card) | PCR-positive(fresh stool sample) |
| Controls (negative by microscopy) | 20 | 0 (0%) | 0 (0%) |
| Cases(positive by microscopy) | 35 | 32 (91.4%) | 33 (94.3%) |
