Figure 3.

Sensitivity of conventional PCR. M, 100 bp DNA ladder; 1, 2 × 107 copies/tube; 2, 2 × 106 copies/tube; 3, 2 × 105 copies/tube; 4, 2 × 104 copies/tube; 5, 2 × 103 copies/tube; 6, 2 × 102 copies/tube; 7, 20 copies/tube; 8, 2 copies/tube; 9, negative control.

Xie et al. Virology Journal 2014 11:76   doi:10.1186/1743-422X-11-76
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