British officials warned that lockdown restrictions in effect in London and much of southern England might need to be expanded.
Source link : https://www.nytimes.com/2020/12/22/world/biontechs-co-founder-says-there-is-no-evidence-its-vaccine-would-not-work-on-the-new-virus-variant.html
Author : Marc Santora and Melissa Eddy
Publish date : 2020-12-22 10:59:50
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