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Prevalence and molecular characteristics of occult hepatitis B virus infection among blood donors in Huzhou City, eastern China.
- Source :
-
Gene [Gene] 2024 Nov 15; Vol. 927, pp. 148718. Date of Electronic Publication: 2024 Jun 22. - Publication Year :
- 2024
-
Abstract
- Occult hepatitis B virus (HBV) infection (OBI) is a significant challenge for HBV prevention and control. We investigated the prevalence and surface (S) gene mutations of OBI among blood donors in Huzhou City, eastern China. The hepatitis B surface antigen (HBsAg) was routinely screened among 44,256 blood donors. HBV-DNA was detected using the Roche cobas®system. Serum samples that were HBsAg negative and HBV-DNA positive were selected, and the HBV S gene was amplified and sequenced. HBV genotype and S gene mutations were analyzed. The OBI rate in these blood donors was 0.070 % (31/44,256). Among the blood donors with OBI, only two cases (2/31, 6.5 %) were anti-HBc negative. The S gene sequences of 28 samples were successfully obtained, and we found that HBV genotype C (21/28, 70 %) was predominant among blood donors with OBI. Most S gene mutations were associated with OBI, and the high frequency mutations included N40S, G44E, Q51R/P, T113A/S,T118K/M, P120Q/S/T, and Y161F/S. Notably, amino acid substitutions at some sites differed from those reported previously, such as Y72F, G102V, P127L, Q129P, and S143T. Additionally, six novel mutations (S31I/N/R, P46L, S58C, C76Y, Y200F/C, and I208T) that may be associated with OBI were found. OBI was detected in a certain proportion of blood donors in Huzhou City. S gene mutations play an important role in OBI development. Further research is required to explore the functions of novel S gene mutants in OBI pathogenesis. The findings of this study may provide important insights to prevent HBV transmission through blood transfusions.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
- Subjects :
- Humans
China epidemiology
Prevalence
Female
Male
Adult
Middle Aged
Young Adult
Blood Donors
Hepatitis B virus genetics
Hepatitis B virus isolation & purification
Hepatitis B epidemiology
Hepatitis B virology
Hepatitis B blood
Hepatitis B genetics
Hepatitis B Surface Antigens blood
Hepatitis B Surface Antigens genetics
Mutation
DNA, Viral genetics
DNA, Viral blood
Genotype
Subjects
Details
- Language :
- English
- ISSN :
- 1879-0038
- Volume :
- 927
- Database :
- MEDLINE
- Journal :
- Gene
- Publication Type :
- Academic Journal
- Accession number :
- 38914243
- Full Text :
- https://doi.org/10.1016/j.gene.2024.148718