The Delta variant outcompeted the previous variants everywhere. The earliest finding of the new 'Omicron' variant was collected in Botswana on November 11th[0].

The Delta variant outcompeted the previous variants everywhere. The earliest finding of the new 'Omicron' variant was collected in Botswana on November 11th[0]. [0] https://www.theguardian.com/world/2021/nov/26/vaccine-resistant-what-scientists-know-new-covid-variant https://www.theguardian.com/world/2021/nov/26/vaccine-resist... [EDIT]