Drivers and impact of the early silent invasion of SARS-CoV-2 Alpha

SARS-CoV-2 variants of concern (VOCs) circulated cryptically before being identified as a threat, delaying interventions. Here we studied the drivers of such silent spread and its epidemic impact to inform future response planning. We focused on Alpha spread out of the UK. We integrated spatio-tempo...

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Main Authors: Faucher, B, Sabbatini, CE, Czuppon, P, Kraemer, MUG, Lemey, P, Colizza, V, Blanquart, F, Boëlle, P, Poletto, C
Format: Journal article
Language:English
Published: Nature Research 2024
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author Faucher, B
Sabbatini, CE
Czuppon, P
Kraemer, MUG
Lemey, P
Colizza, V
Blanquart, F
Boëlle, P
Poletto, C
author_facet Faucher, B
Sabbatini, CE
Czuppon, P
Kraemer, MUG
Lemey, P
Colizza, V
Blanquart, F
Boëlle, P
Poletto, C
author_sort Faucher, B
collection OXFORD
description SARS-CoV-2 variants of concern (VOCs) circulated cryptically before being identified as a threat, delaying interventions. Here we studied the drivers of such silent spread and its epidemic impact to inform future response planning. We focused on Alpha spread out of the UK. We integrated spatio-temporal records of international mobility, local epidemic growth and genomic surveillance into a Bayesian framework to reconstruct the first three months after Alpha emergence. We found that silent circulation lasted from days to months and decreased with the logarithm of sequencing coverage. Social restrictions in some countries likely delayed the establishment of local transmission, mitigating the negative consequences of late detection. Revisiting the initial spread of Alpha supports local mitigation at the destination in case of emerging events.
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spelling oxford-uuid:a8a142e6-0dd9-4bbf-806b-030ec25f1aaf2024-05-30T10:41:52ZDrivers and impact of the early silent invasion of SARS-CoV-2 AlphaJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a8a142e6-0dd9-4bbf-806b-030ec25f1aafEnglishJisc Publications RouterNature Research2024Faucher, BSabbatini, CECzuppon, PKraemer, MUGLemey, PColizza, VBlanquart, FBoëlle, PPoletto, CSARS-CoV-2 variants of concern (VOCs) circulated cryptically before being identified as a threat, delaying interventions. Here we studied the drivers of such silent spread and its epidemic impact to inform future response planning. We focused on Alpha spread out of the UK. We integrated spatio-temporal records of international mobility, local epidemic growth and genomic surveillance into a Bayesian framework to reconstruct the first three months after Alpha emergence. We found that silent circulation lasted from days to months and decreased with the logarithm of sequencing coverage. Social restrictions in some countries likely delayed the establishment of local transmission, mitigating the negative consequences of late detection. Revisiting the initial spread of Alpha supports local mitigation at the destination in case of emerging events.
spellingShingle Faucher, B
Sabbatini, CE
Czuppon, P
Kraemer, MUG
Lemey, P
Colizza, V
Blanquart, F
Boëlle, P
Poletto, C
Drivers and impact of the early silent invasion of SARS-CoV-2 Alpha
title Drivers and impact of the early silent invasion of SARS-CoV-2 Alpha
title_full Drivers and impact of the early silent invasion of SARS-CoV-2 Alpha
title_fullStr Drivers and impact of the early silent invasion of SARS-CoV-2 Alpha
title_full_unstemmed Drivers and impact of the early silent invasion of SARS-CoV-2 Alpha
title_short Drivers and impact of the early silent invasion of SARS-CoV-2 Alpha
title_sort drivers and impact of the early silent invasion of sars cov 2 alpha
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