Evidence map›Paper›PMID 31534915›Full record

ArticleAfrican journal of laboratory medicine2019

Molecular confirmation and phylogeny of Lassa fever virus in Benin Republic 2014-2016.

Olumuyiwa B Salu, Ayorinde B James, Honoré S Bankolé, Jijoho M Agbla, Magloire Da Silva, Fernand Gbaguidi, Christian F Loko, Sunday A Omilabu

Open access · diamondAbstract read
In one paragraph

Article in African journal of laboratory medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
1.0field-weighted citation impact, top 25% 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

7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 10 citations in OpenAlex.

  1. Pooled it
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  7. Review
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

8 authors at 3 institutions in 3 countries.

Olumuyiwa B SaluDepartment of Medical Microbiology and Parasitology, College of Medicine, University of Lagos, Lagos, Nigeria.ORCID https://orcid.org/0000-0003-2683-3521
Ayorinde B JamesCentre for Human and Zoonotic Virology, Central Research Laboratory, College of Medicine, University of Lagos, Lagos, Nigeria.ORCID https://orcid.org/0000-0003-3693-1096
Honoré S BankoléDepartment of Applied Microbiology and Pharmacology of Natural Sciences, University of Abomey-Calavi, Abomey-Calavi, Benin, Benin.ORCID https://orcid.org/0000-0001-5044-5997
Jijoho M AgblaNational Laboratory of Public Health, Ministry of Health, Benin, Benin.ORCID https://orcid.org/0000-0002-6108-2260
Magloire Da SilvaNational Laboratory of Public Health, Ministry of Health, Benin, Benin.ORCID https://orcid.org/0000-0001-7207-9414
Fernand GbaguidiNational Laboratory of Public Health, Ministry of Health, Benin, Benin.ORCID https://orcid.org/0000-0002-4899-0408
Christian F LokoDe la Pharmacie, du Medicament et des Explorations Diagnostiques, Ministére de la Santé, Cotonou, Benin.ORCID https://orcid.org/0000-0003-4611-3580
Sunday A OmilabuDepartment of Medical Microbiology and Parasitology, College of Medicine, University of Lagos, Lagos, Nigeria.ORCID https://orcid.org/0000-0002-7967-3931
Progamme National Contre le Tuberculose · BJUniversity of Lagos · NGMinistère de la Santé Publique · NE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe changing epidemiology of the Lassa virus from endemic areas to other parts of West Africa has been reported. However, there have been no documented Lassa fever transmission chains in the Benin Republic. Two outbreaks of Lassa fever (November 2014 and January 2016) in the Benin Republic were characterised by a high number of deaths (more than 50%) among 27 confirmed and other unconfirmed cases.

objectivesWe report the detection, confirmation and relatedness of the Lassa virus strains from the Benin Republic with other isolates within the West African Sub-region.

methodsA total of 70 blood samples (16 from 2014 and 54 from 2016) from suspected cases with signs and symptoms suggestive of viral haemorrhagic fever were received for molecular analysis at the Centre for Human and Zoonotic Virology, College of Medicine, University of Lagos and the Lagos University Teaching Hospital. With the detection of the Lassa virus RNA by reverse transcriptase polymerase chain reaction, sequencing and phylogenetic analyses were performed using the Sanger dideoxy sequencing technology platform and the MEGA6 software.

resultsS segments of the Lassa virus RNA genome were detected in 5 (7.1%) of the 70 samples analysed. Sequencing and a phylogenetic tree construction confirmed that the strain of Lassa virus had close relationships with strains previously isolated from Nigeria.

conclusionWe confirmed the presence of the Lassa virus in the Benin Republic, with 2 strains having molecular epidemiological links with Lineage I and II strains from Nigeria. To reduce the likelihood of outbreaks, there is a need for heightened awareness and strengthened surveillance systems about Lassa fever, particularly in the sub-region.

Indexed as

Benin RepublicLassa virusphylogenysurveillanceWest Africa

Identifiers

PMID31534915
PMCPMC6739551
OpenAlexW2969794920

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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.