The Omicron variant of coronavirus can partially evade protection from two doses of vaccine made by Pfizer Inc and partner BioNTech, Alex Sigal, the research head of a South African laboratory, said on Tuesday.
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The Omicron variant of coronavirus can partially evade protection from two doses of vaccine made by Pfizer Inc and partner BioNTech, Alex Sigal, the research head of a South African laboratory, said on Tuesday.