Table 1.
Various reported strains of concern of SARS-Cov-2.
| WHO tag | Strain tag by Pango lineage | Other name(s) | Specific mutation spot | Date of designation |
|---|---|---|---|---|
| Alpha (α) | B.1.1.7 | GRY, 20I (V1) | D614G, N501Y, P681H + S:452R, +S:484K | 18 December 2020 |
| Beta (β) | B.1.351 | GR/501Y.V2, 20H (V2) | E484K, K417N, N501Y, +S:L18F | 18 December 2020 |
| Gamma (γ) | P.1 | GR/501Y.V3, 20 J (V3) | N501Y, E484K, K417T + S:681H | 11 January 2021 |
| Delta (δ) | B.1.617.2 | G/478K.V1, 21 A, 21I, 21 J | P681R, D614G, E484Q, E484R, L452R, G142D, D111D + S:484K, +S:417N | 11 May 2021 |
| Omicron | B.1.1.529 | 21K, 21 L | 69-70del, K417N, N501Y, N679K, P681H, T478K, G142D/143-145del, T95I, +R346K | 26 November 2021 |