Figure 2
From: Occult Hepatitis B virus infection Among blood donors in Colombia
HBV ORF S phylogenetic tree without root. For the analysis, it was used a fragment of 267 nucleotides, corresponding to small region of ORFS (nt 449 to nt 716). The sequences of the OBI cases (indicated by red dots) were compared with representative sequences of all HBV genotypes (A to I). Tree was generated by MEGA 5.0 program using Neighbor Joining method. Bootstrap values (indicated with Arabic numerals) were obtained from 1000 replicates, values above 50 are indicated. The green diamond indicates the positive control.