Molecular detection of hepatitis B virus genotype E with immune escape mutations in chronic hepatitis B patients on long-term antiviral therapy in Jos, Nigeria.
Joseph A Anejo-OkopiEdith OkekePantong M DavwarChika Kingsley OnwuamahHarris OnyweraPatience OmaiyeMary DuguruOcheme J OkojokwuOtobo I UjahBulus JonathanChima A GeorgeRamyil S CrownFiyaktu B YakubuJudith O SokeiLeona C OkoliOnyemocho AuduSeth C InzauleIsaac Okoh AbahPatricia A AgabaOche O AgbajiAtiene S SagayClaudia A HawkinsPublished in: African journal of laboratory medicine (2022)
This study revealed exclusive dominance of genotype E in Nigeria. The S gene mutations G145A and L271R are known to be associated with modified antigenicity and impaired serologic assays, which may cause false negatives in the detection of anti-HBV surface antigen. The presence of mutants that are associated with vaccine immune escape may also have diagnostic and vaccine immune response implications.