Risk of COVID-19 variant importation - How useful are travel control measures?

COVID-19 Importation risk Variants

Journal

Infectious Disease Modelling
ISSN: 2468-0427
Titre abrégé: Infect Dis Model
Pays: China
ID NLM: 101692406

Informations de publication

Date de publication:
2021
Historique:
received: 13 05 2021
revised: 18 06 2021
accepted: 20 06 2021
entrez: 26 7 2021
pubmed: 27 7 2021
medline: 27 7 2021
Statut: ppublish

Résumé

We consider models for the importation of a new variant COVID-19 strain in a location already seeing propagation of a resident variant. By distinguishing contaminations generated by imported cases from those originating in the community, we are able to evaluate the contribution of importations to the dynamics of the disease in a community. We find that after an initial seeding, the role of importations becomes marginal compared to that of community-based propagation. We also evaluate the role of two travel control measures, quarantine and travel interruptions. We conclude that quarantine is an efficacious way of lowering importation rates, while travel interruptions have the potential to delay the consequences of importations but need to be applied within a very tight time window following the initial emergence of the variant.

Identifiants

pubmed: 34308002
doi: 10.1016/j.idm.2021.06.006
pii: S2468-0427(21)00045-2
pmc: PMC8272889
doi:

Types de publication

Journal Article

Langues

eng

Pagination

875-897

Informations de copyright

© 2021 The Authors.

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Auteurs

Julien Arino (J)

Department of Mathematics & Data Science Nexus, University of Manitoba, Winnipeg, Manitoba, Canada.

Pierre-Yves Boëlle (PY)

Sorbonne Université, Institut Pierre Louis d'Epidemiologie et de Santé Publique(IPLESP), France.

Evan Milliken (E)

Department of Mathematics, University of Louisville, Louisville, KY, USA.

Stéphanie Portet (S)

Department of Mathematics & Data Science Nexus, University of Manitoba, Winnipeg, Manitoba, Canada.

Classifications MeSH