Figure 3
From: Genotyping the hepatitis B virus with a fragment of the HBV DNA polymerase gene in Shenyang, China
Phylogenetic tree of the nucleotide sequences of the fragments of the semi-nested PCR products and HBV DNA standard genotype polymerase genes. Patients with chronic hepatitis B (P-), asymptomatic carriers of HBV (C-), and the fragments of the standard genotype polymerase genes (hbv A-H) are shown. Only genotypes B, C, and D were detected in the 50 HBV DNA-positive cases.