As shown in Figure 3A, the PAPP-A concentration of the early infection group (mean 5.618 ± 2.281 ng/mL) was above the levels of the control (mean 0.258 ± 0.043 ng/mL) and acute infection (mean 0.231 ± 0.034 ng/mL) groups. The gene discussed is PAPPA; the disease is infection.