Evidence map›Paper›PMID 32103028›Full record

ArticleScientific reports2020

Characterisation of HIV-1 Molecular Epidemiology in Nigeria: Origin, Diversity, Demography and Geographic Spread.

Jamirah Nazziwa, Nuno Rodrigues Faria, Beth Chaplin, Holly Rawizza, Phyllis Kanki, Patrick Dakum, Alash'le Abimiku, Man Charurat, Nicaise Ndembi, Joakim Esbjörnsson

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 4 countries.

Jamirah NazziwaDepartment of Translational Medicine, Lund University, Lund, Sweden.ORCID http://orcid.org/0000-0001-9029-7976
Nuno Rodrigues FariaDepartment of Zoology, University of Oxford, Oxford, United Kingdom.ORCID http://orcid.org/0000-0002-9747-8822
Beth ChaplinDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, USA.
Holly RawizzaDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, USA.
Phyllis KankiDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, USA.
Patrick DakumInstitute of Human Virology Nigeria, Abuja, Nigeria.
Alash'le AbimikuInstitute of Human Virology Nigeria, Abuja, Nigeria.
Man CharuratInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, USA.
Nicaise NdembiInstitute of Human Virology Nigeria, Abuja, Nigeria.ORCID http://orcid.org/0000-0002-9498-3428
Joakim EsbjörnssonDepartment of Translational Medicine, Lund University, Lund, Sweden. joakim.esbjornsson@med.lu.se.ORCID http://orcid.org/0000-0002-6088-7796
University of Maryland, Baltimore · USHarvard University · USLund University · SEUniversity of Oxford · GB

Funding

Impact of Non - B HIV - 1 Subtype on second line Protease Inhibitor Regimens in Africa (INSPIRE)R01AI147331 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI CHARURAT, MANHATTAN E, NDEMBI, NICAISE · 2020 to 2025
$2.9M
CGH CDC HHS U2G GH000925NIAID NIH HHS R01 AI147331
6 · The paper itself

Abstract

Nigeria has the highest number of AIDS-related deaths in the world. In this study, we characterised the HIV-1 molecular epidemiology by analysing 1442 HIV-1 pol sequences collected 1999-2014 from four geopolitical zones in Nigeria using state-of-the-art maximum-likelihood and Bayesian phylogenetic analyses. The main circulating forms were the circulating recombinant form (CRF) 02_AG (44% of the analysed sequences), CRF43_02G (16%), and subtype G (8%). Twenty-three percent of the sequences represented unique recombinant forms (URFs), whereof 37 (11%) could be grouped into seven potentially novel CRFs. Bayesian phylodynamic analysis suggested that five major Nigerian HIV-1 sub-epidemics were introduced in the 1960s and 1970s, close to the Nigerian Civil War. The analysis also indicated that the number of effective infections decreased in Nigeria after the introduction of free antiretroviral treatment in 2006. Finally, Bayesian phylogeographic analysis suggested gravity-like dynamics in which virus lineages first emerge and expand within large urban centers such as Abuja and Lagos, before migrating towards smaller rural areas. This study provides novel insight into the Nigerian HIV-1 epidemic and may have implications for future HIV-1 prevention strategies in Nigeria and other severely affected countries.

Indexed as

Bayes TheoremCluster AnalysisDatabases, GeneticDemographyEvolution, MolecularHIV-1HIV InfectionsHumansNigeriaPhylogenyPhylogeographypol Gene Products, Human Immunodeficiency VirusPrevalenceRecombination, Geneticpol Gene Products, Human Immunodeficiency Virus

Identifiers

PMID32103028
PMCPMC7044301
OpenAlexW3007664036

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

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.