Table 8.
Distribution of the results of 91 serum samples using the 4 Widal brands for anti-H antibodies in relation to their corresponding IgM anti-LPS ELISA results using a cut-off 1/320
| Widal brand | anti-H titer ≥ 1/320 |
ELISA (91) | Total | |||
|---|---|---|---|---|---|---|
| Positive (67) | Negative (24) | |||||
| Number | % | Number | % | |||
| Remel | Negative | 29 | 43.28 | 19 | 79.16 | 48 |
| Positive | 38 | 56.71 | 5 | 20.83 | 43 | |
| Biosystems | Negative | 35 | 52.23 | 20 | 74.07 | 60 |
| Positive | 32 | 47.76 | 4 | 25.92 | 31 | |
| Biotech | Negative | 43 | 64.17 | 22 | 91.66 | 67 |
| Positive | 24 | 35.82 | 2 | 8.33 | 24 | |
| Dialab1) | Negative | 54 | 80.59 | 24 | 100.00 | 78 |
| Positive | 13 | 19.4 | 0 | 0.00 | 13 | |