62 CSF samples were decteced by both the multiplex semi-nested PCR and conventional bacteriologic method ,the comparision revealed sensitivity,specificity, positive and negative predictive values of 93.8%,95.7%,88.2% and 97.8% res-pctively for PCR.

• 以常规细菌学分离培养为参照，对62份脑脊液标本的检测结果表明，该方法敏感性为93.；8%25，特异性为95