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Analysis of discordant results between the ELISA and TPHA syphilis assays
| Medical history | No. of discrepant results:
|
||
|---|---|---|---|
| ELISA+/TPHA− | ELISA−/TPHA+ | Total | |
| Late latent syphilis | 13 | 9 | 22 |
| Children of mothers with syphilisa | 5 | 4 | 9 |
| Other infectious diseaseb | 3 | 5 | 8 |
| Pregnancy | 0 | 1 | 1 |
| Immunological disorders | 3 | 0 | 3 |
| Unclear | 3 | 11 | 14 |
| Total | 27 | 30 | 57 |
Children with transplacentally derived antibodies.
Erysipelas, chlamydial urethritis, gonorrhea, herpes genitalis, Lyme disease, and scabies.
