Figure 4: Comparative analysis of the specificity of LAMP and PCR (a) Electrophoresis analysis of PCR; (b) Electrophoresis analysis and visual detection (HNB) of LAMP. Left to right: lane M, DNA size marker (100 bp; Fermentas); lanes 1 negative control (water); lane 2 PLRV; lane 3 CMV; lane 4 positive sample; lane 5 positive control.