Dispersal patterns and influence of air travel during the global expansion of SARS-CoV-2 variants of concern.
SARS-CoV-2
genomics
global dispersal
mobility
phylogenetics
phylogeography
travel
variants
Journal
Cell
ISSN: 1097-4172
Titre abrégé: Cell
Pays: United States
ID NLM: 0413066
Informations de publication
Date de publication:
20 07 2023
20 07 2023
Historique:
received:
22
11
2022
revised:
31
05
2023
accepted:
02
06
2023
medline:
26
7
2023
pubmed:
7
7
2023
entrez:
6
7
2023
Statut:
ppublish
Résumé
The Alpha, Beta, and Gamma SARS-CoV-2 variants of concern (VOCs) co-circulated globally during 2020 and 2021, fueling waves of infections. They were displaced by Delta during a third wave worldwide in 2021, which, in turn, was displaced by Omicron in late 2021. In this study, we use phylogenetic and phylogeographic methods to reconstruct the dispersal patterns of VOCs worldwide. We find that source-sink dynamics varied substantially by VOC and identify countries that acted as global and regional hubs of dissemination. We demonstrate the declining role of presumed origin countries of VOCs in their global dispersal, estimating that India contributed <15% of Delta exports and South Africa <1%-2% of Omicron dispersal. We estimate that >80 countries had received introductions of Omicron within 100 days of its emergence, associated with accelerated passenger air travel and higher transmissibility. Our study highlights the rapid dispersal of highly transmissible variants, with implications for genomic surveillance along the hierarchical airline network.
Identifiants
pubmed: 37413988
pii: S0092-8674(23)00641-4
doi: 10.1016/j.cell.2023.06.001
pmc: PMC10247138
pii:
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
3277-3290.e16Subventions
Organisme : Wellcome Trust
ID : 222574/Z/21/Z
Pays : United Kingdom
Organisme : Wellcome Trust
ID : 225288/Z/22/Z
Pays : United Kingdom
Organisme : Wellcome Trust
ID : 204311/Z/16/Z
Pays : United Kingdom
Organisme : Medical Research Council
ID : MR/S0195/1
Pays : United Kingdom
Commentaires et corrections
Type : UpdateOf
Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests K.K. is the founder of BlueDot, a social enterprise that develops digital technologies for public health. C.H. is employed at BlueDot.
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