Fig. 2From: Towards accurate exclusion of neonatal bacterial meningitis: a feasibility study of a novel 16S rDNA PCR assayElimination of false positives due to contaminating bacterial DNA, by photoactivation of EtA. A band at 126 bp indicates a positive result. Without photoactivation (“no light”) all specimens are positive. Exposure to light for 60 s completely eliminated false positive signal. Electrophoresis of PCRctic products in 3% agarose gelBack to article page