TABLE 2.

Summary of the 32 samples inconclusive by FTA-ABS and resolved by TP-PA

Test and resultNo. of samples determined by TP-PAa to be:
PositiveNegative
ViraBlot assayb
    Positive152
    Negative114
Virotech immunoblotc
    Positive110
    Negative415
    Equivocal11
Marblot strip assayd
    Positive90
    Negative012
    Equivocal74
  • a TP-PA resolved results.

  • b The Treponema ViraBlot test kit IgG had an accuracy of 90.6% compared with the TP-PA resolved results.

  • c The Treponema pallidum IgG line immunoblot had an accuracy of 81.3% compared with the TP-PA resolved results.

  • d The T. pallidum IgG Marblot strip test system had an accuracy of 65.6% compared with the TP-PA resolved results.