Purpose To study the value of immunohistochemical stain technique in the diagnosis of tuberculous by using BCG polyclonal antibody.

目的：探讨用卡介苗（BCG）多克隆抗体检测结核性病变组织中BCG抗原对结核病的诊断价值。

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Objective: To explore the role of BCG polyclonal antibody for early diagnosis of leprosy, assessment of therapeutic efficacy, and detection of the recurrent cases.

目的讨论卡介苗(BCG)多克隆抗体对麻风病的早期诊断，治疗效果评估和复发病人发现的作用。

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