Hepatitis B surface antigen-negative but hepatitis B envelope antigen-positive false occult hepatitis B virus infection: A case report

doi:10.4254/wjh.v16.i10.1199

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Oct 27, 2024 (publication date) through Nov 26, 2024

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World Journal of Hepatology

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1948-5182

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Case Report

World J Hepatol. Oct 27, 2024; 16(10): 1199-1207
Published online Oct 27, 2024. doi: 10.4254/wjh.v16.i10.1199

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Figure 1 Sequence analysis revealed an insertion of four amino acid residues at positions 120-124 in hepatitis B surface antigen. HBV: Hepatitis B virus.

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Figure 2 The inserted amino acid sequence in hepatitis B surface antigen is next to a disulfide bond associated with loop formation.

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Figure 3 The insertion site of the four amino acid residues is located in the reverse transcriptase domain of the S protein. HBsAg: Hepatitis B surface antigen.

Citation: Yang SS, Fu F, Xuan QK, Zhang ZX, Li ZJ, Li GB, Yu XY. Hepatitis B surface antigen-negative but hepatitis B envelope antigen-positive false occult hepatitis B virus infection: A case report. World J Hepatol 2024; 16(10): 1199-1207
URL: https://www.wjgnet.com/1948-5182/full/v16/i10/1199.htm
DOI: https://dx.doi.org/10.4254/wjh.v16.i10.1199