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editorial
. 2022 Jan 28;12(2):143–146. doi: 10.1007/s44197-022-00032-w

Table 1.

Most important SARS-CoV-2 variants and initial events

Alpha Beta Gamma Delta Omicron
Pango lineage B.1.1.7 B.1.351 P.1 B.1.617.2 B.1.1.529
Date of designation 18 December 2020 18 December 2020 11 January 2021 11 May 2021 26 November 2021
Initial Country United Kingdom South Africa Brazil India South Africa, Hong Kong, Israel, Belgium
(Δ69–70) deletion as revealed by TaqPath PCR Yes No No No Yes