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用抗PPD酶标试剂检测骨与关节结核病人血清，抗PPD阳性率为90．79％，明显高于其它骨关节疾病患者及健康人血清中抗PPD水平（P＜0．01）。
The anti-PPD positive rate of anti-PPD enzyme-linked immunosorbent assay was 90.79% in serum of patients with bone and joint tuberculosis, which was significantly higher than that of other patients with bone-joint disease and healthy people (P <0.01).