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- Title
Global Distribution of Hepatitis D Virus Genotypes: A Systematic Review.
- Authors
Sharafi, Heidar; Rezaee-Zavareh, Mohammad Saeid; Miri, Seyyed Mohammad; Alavian, Seyed Moayed
- Abstract
Context: Hepatitis D virus (HDV) infection, as the main coinfection in patients with chronic hepatitis B, leads to progressive liver disease. Elucidating the global distribution of HDV genotypes may be beneficial for the development of HDV vaccines and antiviral agents. Objectives: Through this systematic review,weaimed to present a clear picture of HDVgenotype dispersal at the global and regional levels. Methods: A systematic search was performed in Scopus, PubMed, andWeb of Science using the relevant keywords of hepatitisDand HDV genotype. The old HDV genotype classification (HDV I, II, and III) and African HDV genotypes (HDV-5, -6, -7, and -8) were used for showing the HDV genetic dispersion. The data of the country-level distribution of HDV genotypes were translated to the regional and global distributions of HDV genotypes. Results: Amongall 1,318 unique titles, 71 studies were screened in the qualitative synthesis consisting of 77 records from 33 countries (sampling locations). In Africa, themostcommongenotypewasHDVI, followed byAfricanHDVgenotypes. In Asia, themostfrequent genotype was HDV II, followed by HDV I. In Europe and Oceania, the most common HDV genotype was HDV I, followed by HDV II and African genotypes. In the Middle East and North America, the most frequent HDV genotype was HDV I. In South America, the most common HDV genotype was HDV III, followed by HDV I and African genotypes. Conclusions:We found HDV I is distributed globally. Other HDV genotypes are observed regionally: HDV II mainly in East Asia, HDV III exclusively in South America, and African genotypes mainly inWest Africa.
- Subjects
AFRICA; ASIA; EUROPE; NORTH America; SOUTH America; HEPATITIS D; GENETICS; HEPATITIS viruses; MEDLINE; ONLINE information services; SYSTEMATIC reviews; GENOTYPES
- Publication
Hepatitis Monthly, 2020, Vol 20, Issue 2, p1
- ISSN
1735-143X
- Publication type
Article
- DOI
10.5812/hepatmon.102268