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Increased transmissibility and global spread of SARS-CoV-2 variants of concern as at June 2021.


ABSTRACT: We present a global analysis of the spread of recently emerged SARS-CoV-2 variants and estimate changes in effective reproduction numbers at country-specific level using sequence data from GISAID. Nearly all investigated countries demonstrated rapid replacement of previously circulating lineages by the World Health Organization-designated variants of concern, with estimated transmissibility increases of 29% (95% CI: 24-33), 25% (95% CI: 20-30), 38% (95% CI: 29-48) and 97% (95% CI: 76-117), respectively, for B.1.1.7, B.1.351, P.1 and B.1.617.2.

SUBMITTER: Campbell F 

PROVIDER: S-EPMC8212592 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

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Increased transmissibility and global spread of SARS-CoV-2 variants of concern as at June 2021.

Campbell Finlay F   Archer Brett B   Laurenson-Schafer Henry H   Jinnai Yuka Y   Konings Franck F   Batra Neale N   Pavlin Boris B   Vandemaele Katelijn K   Van Kerkhove Maria D MD   Jombart Thibaut T   Morgan Oliver O   le Polain de Waroux Olivier O  

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin 20210601 24


We present a global analysis of the spread of recently emerged SARS-CoV-2 variants and estimate changes in effective reproduction numbers at country-specific level using sequence data from GISAID. Nearly all investigated countries demonstrated rapid replacement of previously circulating lineages by the World Health Organization-designated variants of concern, with estimated transmissibility increases of 29% (95% CI: 24-33), 25% (95% CI: 20-30), 38% (95% CI: 29-48) and 97% (95% CI: 76-117), respe  ...[more]

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