Evidence map›Paper›PMID 26854010›Full record

ArticleInfection ecology & epidemiology2016

Molecular characterization of HCV in a Swedish county over 8 years (2002-2009) reveals distinct transmission patterns.

Josefine Ederth, Camilla Jern, Helené Norder, Lars Magnius, Erik Alm, Björg Kleverman Rognsvåg, Carl-Gustaf Sundin, Mia Brytting, Joakim Esbjörnsson, Mattias Mild

Abstract read
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Article in Infection ecology & epidemiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

10 authors.

Josefine EderthDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden; josefine.ederth@folkhalsomyndigheten.se.
Camilla JernStockholm South General Hospital, Stockholm, Sweden.
Helené NorderDepartment of Infectious Medicine, Institute of Biomedicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Lars MagniusDepartment of Infectious Medicine, Institute of Biomedicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Erik AlmDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Björg Kleverman RognsvågUnilabs AB, Mälarsjukhuset Hospital, Eskilstuna, Sweden.
Carl-Gustaf SundinDepartment of Communicable Disease Control, Södermanland County, Sweden.
Mia BryttingDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Joakim EsbjörnssonDepartment of Microbiology Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden.
Mattias MildDepartment of Microbiology, Public Health Agency of Sweden, Solna, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatitis C virus (HCV) is a major public health concern and data on its molecular epidemiology in Sweden is scarce. We carried out an 8-year population-based study of newly diagnosed HCV cases in one of Sweden's centrally situated counties, Södermanland (D-county). The aim was to characterize the HCV strains circulating, analyze their genetic relatedness to detect networks, and in combination with demographic data learn more about transmission.

methodsMolecular analyses of serum samples from 91% (N=557) of all newly notified cases in D-county, 2002-2009, were performed. Phylogenetic analysis (NS5B gene, 300 bp) was linked to demographic data from the national surveillance database, SmiNet, to characterize D-county transmission clusters. The linear-by-linear association test (LBL) was used to analyze trends over time.

resultsThe most prevalent subtypes were 1a (38%) and 3a (34%). Subtype 1a was most prevalent among cases transmitted via sexual contact, via contaminated blood, or blood products, while subtype 3a was most prevalent among people who inject drugs (PWIDs). Phylogenetic analysis revealed that the subtype 3a sequences formed more and larger transmission clusters (50% of the sequences clustered), while the 1a sequences formed smaller clusters (19% of the sequences clustered), possibly suggesting different epidemics.

conclusionWe found different transmission patterns in D-county which may, from a public health perspective, have implications for how to control virus infections by targeted interventions.

Indexed as

clustersgenotypehepatitis C virusnetworkssubtypetransmission

Identifiers

PMID26854010
PMCPMC4744866

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.