Phylogeography and epidemic history of hepatitis C virus genotype 4 in Africa
Journal Title
Virology
Publication Type
Journal Article
Abstract
HCV genotype 4 is prevalent in many African countries, yet little is known about the genotypes epidemic history on the continent. We present a comprehensive study of the molecular epidemiology of genotype 4. To address the deficit of data from the Democratic Republic of the Congo (DRC) we PCR amplified 60 new HCV isolates from the DRC, resulting in 33 core- and 48 NS5B-region sequences. Our data, together with genotype 4 database sequences, were analysed using Bayesian phylogenetic approaches. We find three well-supported intra-genotypic lineages and estimate that the genotype 4 common ancestor existed around 1733 (1650-1805). We show that genotype 4 originated in central Africa and that multiple lineages have been exported to north Africa since ~1850, including subtype 4a which dominates the epidemic in Egypt. We speculate on the causes of the historical intra-continental spread of genotype 4, including population movements during World War 2.
Publisher
Elsevier
Research Division(s)
Infection And Immunity
Terms of Use/Rights Notice
Copyright © 2014 The Authors. Published by Elsevier Inc.


Creation Date: 2014-09-12 02:01:41
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