方法对2 272例诊断为结核病的住院病人进行HIV抗体检测，初筛阳性者进一步做免疫印迹试验（WB）。
Methods HIV antibody were screened by ELISA and confirmed by western blot( WB)in 2 272 patients diagnosed with tuberculosis.
所有受检父母TPPA全部为阳性，HIV初筛实验结果均呈阴性。
All the parents were positive for TPPA, and negative for HIV test.
方法：大量样品首先用直接竞争ELISA方法初筛测定，阳性样品再用免疫亲和柱净化、荧光检测器测定的HPLC方法验证和准确定量。
Methods:The concentrations of AFB1 in the samples extracts were initially estimated by ELISA. Samples found to be positive with ELISA were further confirmed and quantified with HPLC.
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