TABLE I. A summary of ELISA test results in case and control stool samples.
| Infection status | Giardia -negative (n) | Giardia -positive (n) | Not tested (n) | Total (n) |
|---|---|---|---|---|
| Diarrhoea | 85 | 66 | 1 | 152 |
| No diarrhoea | 353 | 88 | 2 | 443 |
| Total | 438 | 154 | 3 | 595 |
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