Figure 1From: Evaluation of the IS6110 PCR assay for the rapid diagnosis of tuberculous meningitisAmplification of the 123 bp product of M. tuberculosis by PCR. PCR products were analyzed by electrophoresis on 2% agarose gel. M represents 100 bp DNA ladder. L1: positive control DNA (M. tuberculosis strain H37Rv). L2, L4, L6: clinically positive TBM samples. L3, L5: non-TBM samples. L7: negative control.Back to article page