Fig. 1

Genome DNA nested PCR gel electrophoresis. Detection of EBV DNA by nested PCR after the first round of amplification. The 298 bp product was seen in lane (A). One of the representative results was shown here. And the 122 bp amplification products were seen in lanes 2, 7 and 8 after the second round of amplification. No bands were visualized in lanes 3, 4, 5, 6, 9, 10, 11 and 12. Lane 1 and 13 were the negative and positive control, respectively (B). The lane marked “Marker” is the 100 bp ladder (100–1500 bp) DNA marker