Evaluation of AccuVert PSS901 syphilis seroconversion panel, which consisted of nine members, by the DPP HIV-Syphilis and in-house DPP HIV-Syphilis IgM assays yielded antibody-positive results with samples 06 through 09 collected over a span of 2 weeks, indicating a growing humoral immune response (Fig. 4A). The gene discussed is CD40LG; the disease is syphilis.