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Will Omicron be more contagious than Delta?

A new variant named Omicron (B.1.1.529) was reported by researchers in South Africa on November 24, 2021, and designated a “variant of concern” by the World Health Organization two days later.

Omicron is very unusual in that it is by far the most heavily mutated variant yet of SARS-CoV-2, the virus that causes Covid-19.

The Omicron variant has 50 mutations overall, with 32 mutations on the spike protein alone. The spike protein – which forms protruding knobs on the outside of the SARS-CoV-2 virus – helps the virus adhere to cells so that it can gain entry.



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