TABLE 2.
Comparison of results for sera from four regions of Brazil obtained by IFAs and in-house assays with results obtained with three commercial assay kits
| Source of sera and result | No. of serum samples:
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Tested by IFAs and in-house assays | With Abbott Chagas antibody EIA kit result
|
With Biolab-Mérieux BIOELISACRUZI kit result
|
With BIOZIMA Chagas kit result
|
|||||||
| Positive | Negative | Indeterminate | Positive | Negative | Indeterminate | Positive | Negative | Indeterminate | ||
| Minas Gerais | ||||||||||
| Positive | 180 | 179 | 0 | 1 | 178 | 1 | 1 | 180 | 0 | 0 |
| Negative | 81 | 2 | 79 | 0 | 1 | 80 | 0 | 1 | 80 | 0 |
| Paraíba | ||||||||||
| Positive | 135 | 133 | 2 | 0 | 126 | 3 | 6 | 135 | 0 | 0 |
| Negative | 305 | 12 | 287 | 6 | 0 | 305 | 0 | 20 | 285 | 0 |
| Piauí | ||||||||||
| Positive | 202 | 199 | 3 | 0 | 196 | 3 | 3 | 202 | 0 | 0 |
| Negative | 44 | 2 | 41 | 1 | 0 | 43 | 1 | 1 | 43 | 0 |
| Amazon | ||||||||||
| Positive | 3 | 3 | 0 | 0 | 3 | 0 | 0 | 3 | 0 | 0 |
| Negative | 75 | 0 | 74 | 1 | 0 | 75 | 0 | 5 | 70 | 0 |
| Total for all sera | ||||||||||
| Positive | 520 | 514 | 5 | 1 | 503 | 7 | 10 | 520 | 0 | 0 |
| Negative | 505 | 16 | 481 | 8 | 1 | 503 | 1 | 27 | 478 | 0 |