![]() ![]() In the meantime there had been verified appearances in nearly 200 countries and territories, as of November 2021. The first variant of concern was called B.1.1.7 (today: Alpha) and was first detected in the United Kingdom in December 2020. These mutations are especially under investigation because they could lead to an increased transmissibility and make the virus potentially capable of evading vaccine-mediated immunity. The variant is called 'Omicron' (lineage B.1.1.529) and has more than 30 spike protein mutations. It was detected for the first time in South Africa and has spread at least to 10 countries and territories so far. ![]() ![]() Comparison of variants of concern of SARS-CoV-2 November 2021Īt end of November 2021, a new variant of concern (VoC) of the novel coronavirus (SARS-CoV-2) raised concern due to its specific characteristics.
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