Increased transmissibility and global spread of SARS-CoV-2 variants of concern as at June 2021.
Finlay Campbell;
Brett Archer;
Henry Laurenson-Schafer;
Yuka Jinnai;
Franck Konings;
Neale Batra;
Boris Pavlin;
Katelijn Vandemaele;
Maria D Van Kerkhove;
Thibaut Jombart 
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+2 more...
Oliver Morgan;
Olivier le Polain de Waroux ;
(2021)
Increased transmissibility and global spread of SARS-CoV-2 variants of concern as at June 2021.
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 26 (24).
pp. 1-6.
ISSN 1025-496X
DOI: 10.2807/1560-7917.ES.2021.26.24.2100509
;
+2 more...
Oliver Morgan;
Olivier le Polain de Waroux ;
(2021)
Increased transmissibility and global spread of SARS-CoV-2 variants of concern as at June 2021.
Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 26 (24).
pp. 1-6.
ISSN 1025-496X
DOI: 10.2807/1560-7917.ES.2021.26.24.2100509
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.
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