The Korea Herald

10 questions about the Omicron variant — including its symptoms and spread — answered by an expert

By Business Insider

Published : Dec. 4, 2021 - 11:19

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Dr. Leana Wen from George Washington University said the Omicron variant seems to be more contagious than the Delta variant in South Africa. It has at least 50 mutations, which could make existing vaccines and therapies less effective.