A Nature research paper reports reduced effectiveness of vaccine- or infection-elicited antibodies against the SARS-CoV-2 Omicon variant, relative to other viral lineages
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The Omicron variant of severe acute respiratory syndrome coronavirus 2 was initially identified in November of 2021 in South Africa and Botswana as well as in a sample from a traveler from South Africa in Hong Kong. Since then, B.1.1.529 has been detected globally. This variant seems to be at least equally infectious than B.1.617.2 , has already caused super spreader eventsand has outcompeted Delta within weeks in several countries and metropolitan areas. B.1.1.
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