Figure 2From: Hepatitis B virus genotypes and evolutionary profiles from blood donors from the northwest region of ChinaGenotyping of HBV reactive blood donors. All positive samples from the blood donors were subjected to DNA extraction and then genotyping by nest-PCR. A, gel electrophoresis of PCR products after nest-PCR in genotype analysis (data represents one of three independent experiments); B, sample counts of each genotype according A.Back to article page