Table 4 Distribution of the results of 91 serum samples using the 4 Widal brands for anti-O antibodies in relation to their corresponding IgM anti-LPS ELISA results using a cut-off 1/320
Widal brand | anti-O titer ≥ 1/320 | ELISA (91) | Total | |||
|---|---|---|---|---|---|---|
| Â | Â | Positive (67) | Negative (24) | Â | ||
| Â | Â | Number | % | Number | % | Â |
Remel (91) | Negative | 27 | 40.29 | 24 | 100.00 | 51 |
| Â | Positive | 40 | 59.7 | 0 | 0.00 | 40 |
Biosystems (91) | Negative | 36 | 53.73 | 24 | 100.00 | 60 |
| Â | Positive | 31 | 46.26 | 0 | 0.00 | 31 |
Biotech (91) | Negative | 43 | 64.17 | 24 | 100.00 | 67 |
| Â | Positive | 24 | 35.82 | 0 | 0.00 | 24 |
Dialab (91) | Negative | 65 | 97.01 | 24 | 100.00 | 89 |
| Â | Positive | 2 | 2.98 | 0 | 0.00 | 2 |