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Lineages of SARS-CoV-2 variants
| Lineage | WHO label | First detected (when) | First detected (where) |
|---|---|---|---|
| B.1.1.7 | Alpha | 18 December 2020 | United Kingdom |
| B.1.351 | Beta | May 2020 | South Africa |
| P.1 | Gamma | November 2020 | Brazil |
| B.1.617.2 | Delta | October 2020 | India |
| B.1.1.529 | Omicron | November 2021 | Multiple countries |
