TABLE 5.
Comparison of TPI and SIFA reactivities in sera from patients with syphilis, in sera defined as BFP reactors, in sera from healthy blood donors, and in sera from patients with Lyme disease or leptospirosis
| Specimen source or type | No. tested | No. of specimens showing the following TPI and SIFA results, respectively
|
% Agreement | |||
|---|---|---|---|---|---|---|
| + and + | + and − | − and + | − and − | |||
| Syphilis patients | 100 | 52 | 0 | 47 | 1 | 53 |
| BFP reactor | 50 | 0 | 0 | 0 | 50 | 100 |
| Blood donors | 50 | 0 | 0 | 0 | 50 | 100 |
| Lyme disease patients | 20 | 0 | 0 | 0 | 20 | 100 |
| Leptospirosis patients | 20 | 0 | 0 | 0 | 20 | 100 |