Table 1.
SARS-CoV-2 Variants of Concern and Variants of Interest (as of 15 June 2021).
| Variants of Concern | |||||
|---|---|---|---|---|---|
| WHO Label | PANGO Lineage | GISAID Clade/Lineage | Next Strain Clade | Earliest Documented Samples | Date of Designation |
| Alpha | B.1.1.7 | GRY (formerly GR/501Y.V1) | 20I (V1) | United Kingdom, Sep-2020 |
18-Dec-2020 |
| Beta | B.1.351 | GH/501Y.V2 | 20H (V2) | South Africa, May-2020 |
18-Dec-2020 |
| Gamma | P.1 | GR/501Y.V3 | 20J (V3) | Brazil, Nov-2020 |
11-Jan-2021 |
| Delta | B.1.617.2 | G/478K.V1 | 21A | India, Oct-2020 |
VOI: 4-Apr-2021 VOC: 1 |
| Variants of Interest | |||||
| Epsilon | B.1.427/B.1.429 | GH/452R.V1 | 21C | United States of America, Mar-2020 |
5-Mar-2021 |
| Zeta | P.2 | GR/484K.V2 | 20B/S.484K | Brazil, Apr-2020 |
17-Mar-2021 |
| Eta | B.1.525 | G/484K.V3 | 21D | Multiple countries, Dec-2020 |
17-Mar-2021 |
| Theta | P.3 | GR/1092K.V1 | 21E | Philippines, Jan-2021 |
24-Mar-2021 |
| Iota | B.1.526 | GH/253G.V1 | 21F | United States of America, Nov-2020 |
24-Mar-2021 |
| Kappa | B.1.617.1 | G/452R.V3 | 21B | India, Oct-2020 |
4-Apr-2021 |
| Lambda | C.37 | GR/452Q.V1 | 20D | Peru, Aug-2020 | 14-Jun-2021 |
WHO = World Health Organization. GISAID = Global initiative on sharing avian flu data. PANGO = Phylogenetic Assignment of Named Global Outbreak.