Omicron, the 13th named variant of the coronavirus, seems to have a remarkable capacity to evolve new tricks.
Where is Pi?
Last year, the World Health Organization began assigning Greek letters to worrying new variants of the coronavirus. The organization started with Alpha and swiftly worked its way through the Greek alphabet in the months that followed. When Omicron arrived in November, it was the 13th named variant in less than a year.
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