Table 3.

Expected serologic response to treatmenta

Disease stageDecrease in nontreponemal titer at:
6 mo posttreatment12 mo posttreatment24 mo posttreatment
Primary4-foldb 6-fold8-fold
Secondary6-fold8-fold
Early latent4-fold
  • a Adapted from reference191 with permission of the publisher.

  • b For example, a fourfold decrease in titer is 1:32 to 1:8.