How fast the omicron variant is spreading in the world
The variant detected in November has overtaken delta as the dominant version of the coronavirus.
In the worldwide chart of coronavirus variants below, the red omicron appears at the top right corner in the very end of November. This chart represents countries where genomic sequences are publicly released, so some large countries are not included. It takes about a week for laboratories to identify virus variants, so this data is always time-lagged. Using the variant data, the Centers for Disease Control and Prevention estimated that omicron was 98 percent of the covid cases in the country last week.
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