Evidence map›Paper›PMID 36422924›Full record

ArticleTropical medicine and infectious disease2022

Global Distribution, Dispersal Patterns, and Trend of Several Omicron Subvariants of SARS-CoV-2 across the Globe.

Ioannis Kopsidas, Sofia Karagiannidou, Evangelia Georgia Kostaki, Dimitra Kousi, Eirini Douka, Petros P Sfikakis, Serafeim Moustakidis, Christos Kokkotis, Dimitrios Tsaopoulos, Ioulia Tseti and 2 more

Abstract read
In one paragraph

Article in Tropical medicine and infectious disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Article
  4. A comprehensive analysis of the SARS-CoV-2 omicron variant in Tocantins State, Brazil, and tracing the spread of the XBB.1.18.1 lineage.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
    Article
  5. Review
  6. Mapping Long COVID: Spatial and Social Inequities Across the United States.medRxiv : the preprint server for health sciences · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Observational
  11. Article
  12. Article
  13. Article
  14. Article
  15. Emergent Omicron BR.2.1 sublineage of SARS-CoV-2 in New South Wales, Australia: a subvariant with high fitness but without increased disease severity.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2023
    Article
  16. Article
  17. Article
  18. 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

12 authors.

Ioannis KopsidasCenter for Clinical Epidemiology and Outcomes Research (CLEO), 15451 Athens, Greece.ORCID 0000-0001-6499-4807
Sofia KaragiannidouNational Public Health Organisation (NPHO), 15123 Athens, Greece.ORCID 0000-0002-8014-9950
Evangelia Georgia KostakiDepartment of Hygiene Epidemiology and Medical Statistics, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.ORCID 0000-0002-3346-0930
Dimitra KousiCenter for Clinical Epidemiology and Outcomes Research (CLEO), 15451 Athens, Greece.
Eirini DoukaNational Public Health Organisation (NPHO), 15123 Athens, Greece.
Petros P SfikakisFirst Department of Propaedeutic and Internal Medicine, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.
Serafeim MoustakidisAIDEAS OÜ, Narva mnt 5, 10117 Tallinn, Estonia.ORCID 0000-0002-1090-2177
Christos KokkotisDepartment of Physical Education and Sport Science, Democritus University of Thrace, 69100 Komotini, Greece.
Dimitrios TsaopoulosCenter for Research and Technology Hellas, Institute for Bio-Economy & Agri-Technology, 38333 Volos, Greece.ORCID 0000-0001-7355-0511
Ioulia TsetiUni-Pharma S.A., 14564 Kifissia, Greece.
Theoklis ZaoutisNational Public Health Organisation (NPHO), 15123 Athens, Greece.
Dimitrios ParaskevisNational Public Health Organisation (NPHO), 15123 Athens, Greece.ORCID 0000-0001-6167-7152

Funding

Kleon Tsetis Foundation Kleon Tsetis Foundation
6 · The paper itself

Abstract

Our study aims to describe the global distribution and dispersal patterns of the SARS-CoV-2 Omicron subvariants. Genomic surveillance data were extracted from the CoV-Spectrum platform, searching for BA.1*, BA.2*, BA.3*, BA.4*, and BA.5* variants by geographic region. BA.1* increased in November 2021 in South Africa, with a similar increase across all continents in early December 2021. BA.1* did not reach 100% dominance in all continents. The spread of BA.2*, first described in South Africa, differed greatly by geographic region, in contrast to BA.1*, which followed a similar global expansion, firstly occurring in Asia and subsequently in Africa, Europe, Oceania, and North and South America. BA.4* and BA.5* followed a different pattern, where BA.4* reached high proportions (maximum 60%) only in Africa. BA.5* is currently, by Mid-August 2022, the dominant strain, reaching almost 100% across Europe, which is the first continent aside from Africa to show increasing proportions, and Asia, the Americas, and Oceania are following. The emergence of new variants depends mostly on their selective advantage, translated as enhanced transmissibility and ability to invade people with existing immunity. Describing these patterns is useful for a better understanding of the epidemiology of the VOCs' transmission and for generating hypotheses about the future of emerging variants.

Indexed as

coronavirusdistributionemergenceepidemiologyOmicronSARS-CoV-2subvariantsvariantsVOC

Identifiers

PMID36422924
PMCPMC9698960

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.