Figure 1From: Detection of hepatitis B virus isolates with mutations associated with immune escape mutants among pregnant women in Ibadan, southwestern Nigeria Alignment of amino acid residues of the seven isolates sequenced in this study against a reference genotype E strain. Of particular interest are isolates NGRUC-12-054-A8-HBsAg, NGRUC-13-084-B7-HBsAg and NGRUC-13-100-C1-HBsAg with mutations in the ‘a’ determinant (s122 to s160).Back to article page