Evidence map›Paper›PMID 40436832›Full record

ArticleNature communications2025

Tracing the spatial origins and spread of SARS-CoV-2 Omicron lineages in South Africa.

Graeme Dor, Eduan Wilkinson, Darren P Martin, Monika Moir, Derek Tshiabuila, Dikeledi Kekana, Buhle Ntozini, Rageema Joseph, Arash Iranzadeh, Martin M Nyaga and 22 more

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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.

  1. Understanding patterns of variant emergence and spread in an ongoing epidemic.medRxiv : the preprint server for health sciences · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. A Pandemic-Scale Ancestral Recombination Graph for SARS-CoV-2.bioRxiv : the preprint server for biology · 2025
    Article
  6. Article
  7. Article
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

32 authors.

Graeme DorCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa.
Eduan WilkinsonCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa.ORCID http://orcid.org/0000-0002-2503-9441
Darren P MartinDivision of Computational Biology, Department of Integrative Biomedical Sciences, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa.
Monika MoirCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa.ORCID http://orcid.org/0000-0003-1095-1910
Derek TshiabuilaCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa.
Dikeledi KekanaNational Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa.
Buhle NtoziniNational Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa.
Rageema JosephDivision of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa.
Arash IranzadehComputational Biology Division, University of Cape Town, Cape Town, South Africa.
Martin M NyagaNext Generation Sequencing Unit and Division of Virology, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa.ORCID http://orcid.org/0000-0002-5017-5584
Dominique GoedhalsDivision of Virology, University of the Free State, Bloemfontein, South Africa.
Tongai MapongaNational Health Laboratory Service, Tygerberg, Cape Town, South Africa.ORCID http://orcid.org/0000-0002-6876-3712
Jean MaritzDivision of Medical Virology, Faculty of Medicine & Health Sciences, Stellenbosch University, Stellenbosch, South Africa.
Oluwakemi Laguda-AkingbaNational Health Laboratory Service, Port Elizabeth, South Africa.ORCID http://orcid.org/0000-0002-1225-8098
Yajna RamphalCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa.
Caitlin MacIntyreEmerging Viral Threats, One Health surveillance and vaccines (EViTOH) Division, Infectious Disease and Oncology Research Institute (IDORI), School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Lucious ChabukaCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa.
Sureshnee PillayKwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa.
Jennifer GiandhariKwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa.
Cheryl BaxterCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa.ORCID http://orcid.org/0000-0002-6033-7655
Nei-Yuan HsiaoDivision of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa.ORCID http://orcid.org/0000-0003-4926-6216
Wolfgang PreiserNational Health Laboratory Service, Tygerberg, Cape Town, South Africa.ORCID http://orcid.org/0000-0002-0254-7910
Jinal N BhimanNational Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa.ORCID http://orcid.org/0000-0001-6354-4003
Mary-Anne DaviesCentre for Infectious Disease Epidemiology and Research, School of Public Health, University of Cape Town, Cape Town, South Africa.
Marietjie VenterEmerging Viral Threats, One Health surveillance and vaccines (EViTOH) Division, Infectious Disease and Oncology Research Institute (IDORI), School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.ORCID http://orcid.org/0000-0003-2696-824X
Florette K TreurnichtNational Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa.
Nicole WolterNational Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa.ORCID http://orcid.org/0000-0002-9526-0133
Carolyn WilliamsonNational Health Laboratory Service, Cape Town, South Africa.ORCID http://orcid.org/0000-0003-0125-1226
Anne von GottbergNational Institute for Communicable Diseases (NICD) of the National Health Laboratory Service (NHLS), Johannesburg, South Africa.ORCID http://orcid.org/0000-0002-0243-7455
Richard LessellsKwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa.ORCID http://orcid.org/0000-0003-0926-710X
Houriiyah TegallyCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa. houriiyah@sun.ac.za.ORCID http://orcid.org/0000-0002-7102-8540
Tulio de OliveiraCentre for Epidemic Response and Innovation (CERI), School for Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa. tulio@sun.ac.za.

Funding

University of Washington Arboviral Research Network (UWARN)U01AI151698 · NIAID · UNIVERSITY OF WASHINGTON · PI Michael Gale, PETER MACGARR RABINOWITZ · 2020 to 2026
$13.3M
eLwazi Open Science Data Platform for AfricaU2CEB032224 · NIBIB · UNIVERSITY OF CAPE TOWN · PI MULDER, NICOLA, SKELTON, MICHELLE · 2021 to 2025
$11.2M
Role of Data Streams In Informing Infection Dynamics in Africa- INFORM AfricaU54TW012041 · FIC · INSTITUTE OF HUMAN VIROLOGY · PI Alash'le G. Abimiku, Tulio de Paiva Nazareth Andrade De Oliveira · 2021 to 2026
$6.9M
FIC NIH HHS U54 TW012041Gates Foundation INV-018978Gates Foundation INV-030570NCIRD CDC HHS H23 IP000930NCIRD CDC HHS U01 IP001048NIAID NIH HHS U01 AI151698NIBIB NIH HHS U2C EB032224Wellcome Trust
6 · The paper itself

Abstract

Since November 2021, five genetically distinct SARS-CoV-2 Omicron lineages (BA.1-BA.5) are believed to have emerged in southern Africa, with four (BA.1, BA.2, BA.4, and BA.5) spreading globally and collectively dominating SARS-CoV-2 diversity. In 2023, BA.2.86, a highly divergent BA.2 lineage that rose to prominence worldwide, was first detected in Israel and Denmark, but the subsequent diversity of South African sequences suggests it too emerged in the region. Using Bayesian phylogeographic inference, we reconstruct the origins and dispersal patterns of BA.1-BA.5 and BA.2.86. Our findings suggest that Gauteng province in South Africa likely played a key role in the emergence and/or amplification of multiple Omicron lineages, though regions with limited sampling may have also contributed. The challenge of precisely tracing these origins highlights the need for broader genomic surveillance across the region to strengthen early detection, track viral evolution, and improve preparedness for future threats.

Indexed as

COVID-19SARS-CoV-2Bayes TheoremGenome, ViralHumansPhylogenyPhylogeographySouth Africa

Identifiers

PMID40436832
PMCPMC12120024

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.