Evidence map›Paper›PMID 37640294›Full record

ReviewThe American journal of tropical medicine and hygiene2023

COVID-19 in 16 West African Countries: An Assessment of the Epidemiology and Genetic Diversity of SARS-CoV-2 after Four Epidemic Waves.

Anna Julienne Selbé Ndiaye, Mamadou Beye, Aissatou Sow, Gora Lo, Abdou Padane, Cheikh Sokhna, Coumba Touré Kane, Philippe Colson, Florence Fenollar, Souleymane Mboup and 1 more

Open access · hybridAbstract readReview
In one paragraph

Review in The American journal of tropical medicine and hygiene, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 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

11 authors at 5 institutions in 2 countries.

Anna Julienne Selbé NdiayeInstitut de Recherche en Santé, de Surveillance Epidémiologique et de Formation, Dakar, Senegal.
Mamadou BeyeInstitut Hospitalo-Universitaire-Méditerranée Infection, Marseille, France.
Aissatou SowInstitut de Recherche en Santé, de Surveillance Epidémiologique et de Formation, Dakar, Senegal.
Gora LoInstitut de Recherche en Santé, de Surveillance Epidémiologique et de Formation, Dakar, Senegal.
Abdou PadaneInstitut de Recherche en Santé, de Surveillance Epidémiologique et de Formation, Dakar, Senegal.
Cheikh SokhnaInstitut Hospitalo-Universitaire-Méditerranée Infection, Marseille, France.
Coumba Touré KaneInstitut de Recherche en Santé, de Surveillance Epidémiologique et de Formation, Dakar, Senegal.
Philippe ColsonInstitut Hospitalo-Universitaire-Méditerranée Infection, Marseille, France.
Florence FenollarInstitut Hospitalo-Universitaire-Méditerranée Infection, Marseille, France.
Souleymane MboupInstitut de Recherche en Santé, de Surveillance Epidémiologique et de Formation, Dakar, Senegal.
Pierre-Edouard FournierInstitut Hospitalo-Universitaire-Méditerranée Infection, Marseille, France.
Institute of Health Research, Epidemiological Surveillance and Training · SNAssistance Publique Hôpitaux de Marseille · FRMéditerranée Infection Foundation · FRAix-Marseille Université · FRInstitut de Recherche pour le Développement · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

West Africa faced the COVID-19 pandemic in early March 2020 and, as of March 31, 2022, had more than 900,000 confirmed cases and more than 12,000 deaths. During this period, SARS-CoV-2 genomes evolved genetically, resulting in the emergence of distinct lineages. This review was conducted to provide the epidemiological profile of COVID-19, the mutational profile of SARS-CoV-2, and the dynamics of its lineages in the 16 west African countries by analyzing data from 33 studies and seven situation reports. For a more complete representation of the epidemiology and genetic diversity of SARS-CoV-2, we used reliable public data in addition to eligible studies. As of March 31, 2022, the 16 west African countries experienced four epidemic waves with variable intensities. Higher mortality was noted during the third wave with a case fatality rate (CFR) of 1.9%. After these four epidemic waves, Liberia recorded the highest CFR (4.0%), whereas Benin had the lowest CFR (0.6%). Through mutational analysis, a high genetic heterogeneity of the genomes was observed, with a predominance of mutations in the spike protein. From this high mutational rate, different lineages emerged. Our analysis of the evolutionary diversity allowed us to count 205 lineages circulating in west Africa. This study has provided a good representation of the mutational profile and the prevalence of SARS CoV-2 lineages beyond the knowledge of the global epidemiology of the 16 African countries.

Indexed as

COVID-19Genetic VariationSARS-CoV-2Africa, WesternGenome, ViralHumansMutationPhylogeny

Identifiers

PMID37640294
PMCPMC10551082
OpenAlexW4386213037

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.