Research Article
Inconclusive Syphilis Results: A Retrospective Review of Public Health Results
Table 1
Inconclusive results and interpretations.
| Test | Interpretations | Treponemal | Nontreponemal | EIA (screen) | TPPA (confirmatory) | RPR (confirmatory) |
| Reactive | Nonreactive | Indeterminate | (i) New infection (ii) Older untreated infection (iii) Older treated infection (iv) Other nonvenereal treponemal infection (v) False positive | Reactive | Reactive (with titre) | Nonreactive |
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