Boris Johnson at a press conference Dec. 8, after discussions on restrictions as a result of the Omicron variant (Adrian Dennis/Pool via AP Images)
Covid-19 roundup: UK preps for a wave of Omicron cases; Bourla suggests a fourth dose might be necessary
With reports of Omicron cases in over 50 countries, and at least 19 US states, some regions like the UK are now expecting a rapid …
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