Figure 1From: Factors influencing polymerase chain reaction outcomes in patients with clinically suspected ocular tuberculosisDetection limits of individual primers in multi-target PCR assay. Agarose gel (2%) electrophoresis of multi-target PCR assay for serial dilutions of H37Rv Mycobacterium tuberculosis, showing detection limit for protein b and IS6110 at 102 colony forming units (CFU) and for MPB64 at 10 CFU. No amplification was seen at 5 CFU for any of the primers.Back to article page