Table 3 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 1/160
Widal brand | anti-O titer ≥ 1/160 | ELISA (91) | Total | |||
|---|---|---|---|---|---|---|
| Â | Â | Positive (67) | Negative (24) | Â | ||
| Â | Â | Number | % | Number | % | Â |
Remel (91) | Negative | 7 | 10.44 | 20 | 83.33 | 27 |
| Â | Positive | 60 | 89.55 | 4 | 16.66 | 64 |
Biosystems (91) | Negative | 11 | 16.41 | 23 | 95.83 | 34 |
| Â | Positive | 56 | 83.58 | 1 | 4.16 | 57 |
Biotech (91) | Negative | 13 | 19.4 | 20 | 83.33 | 33 |
| Â | Positive | 54 | 80.59 | 4 | 16.66 | 58 |
Dialab (91) | Negative | 35 | 52.23 | 23 | 95.83 | 58 |
| Â | Positive | 32 | 47.76 | 1 | 4.16 | 33 |