TABLE 1.
Lineages identified in this study
| Lineages | This study (no.) | Italian sequences (no.) | Most common countries | Earliest date | Count | Description a |
|---|---|---|---|---|---|---|
| A | 5 | 16 | United_Arab_Emirates 19.0%, Germany 13.0%, China 13.0%, United States of America 6.0%, Japan 5.0% | 30–12–2019 | 1312 | Root of the pandemic lies within lineage A |
| B | 9 | 21 | United Kingdom 36.0%, United States of America 16.0%, China 13.0%, Spain 4.0%, Singapore 3.0% | 24–12–2019 | 4976 | Base of this lineage also lies in China, with many global exports, two distinct SNPs `8782TC` and `28144CT` define this lineage |
| B.1 | 45 | 743 | United States of America 46.0%, United Kingdom 13.0%, Canada 5.0%, Spain 4.0%, France 3.0% | 24–01–2020 | 50516 | A large European lineage that corresponds to the Italian outbreak. |
| B.1.1 | 1 | 29 | United States of America 27.0%, United Kingdom 23.0%, Canada 6.0%, Germany 6.0%, Netherlands 5.0% | 24–02–2020 | 2766 | European lineage |
| B.1.1.1 | 3 | 150 | United Kingdom 76.0%, Denmark 2.0%, Italy 2.0%, United States of America 2.0%, Switzerland 2.0% | 02–03–2020 | 7604 | UK/ Europe lineage |
| B.1.1.148 | 1 | 1 | USA 89.0%, Canada 5.0%, Germany 2.0%, UK 2.0%, Mexico 1.0% | 16–05–2020 | 87 | USA lineage |
| B.1.1.161 | 10 | 0 | Saudi_Arabia 24.0%, UK 21.0%, Switzerland 10.0%, Czech_republic 10.0%, Denmark 4.0% | 09–03–2020 | 202 | Saudi Arabian lineage |
| B.1.1.162 | 1 | 57 | United Kingdom 23.0%, United States of America 15.0%, Japan 10.0%, Canada 9.0%, Spain 6.0% | 26–02–2020 | 1927 | Australian/UK lineage |
| B.1.1.38 | 1 | 0 | United Kingdom 23.0%, United States of America 15.0%, Japan 10.0%, Canada 9.0%, Spain 6.0% | 24–03–2020 | 260 | UK lineage |
| B.1.1.44 | 1 | 0 | United Kingdom 56.0%, Spain 20.0%, United States of America 11.0%, Denmark 2.0%, Switzerland 1.0% | 23–03–2020 | 630 | UK/Spain lineage |
| B.1.1.71 | 2 | 4 | Netherlands 27.0%, United_Arab_Emirates 21.0%, UK 17.0%, Australia 8.0%, Belgium 7.0% | 06–03–2020 | 146 | The Netherlands lineage |
| B.1.1.74 | 7 | 0 | United Kingdom 87.0%, United States of America 5.0%, Peru 3.0%, Ireland 1.0%, Russia 1.0% | 23–05–2020 | 268 | Northern Irish lineage |
| B.1.243 | 1 | 0 | United States of America 98.0%, Mexico 1.0%, Canada 0.0%, Switzerland 0.0%, South_Korea 0.0% | 23–03–2020 | 5256 | USA lineage |
| B.1.379 | 1 | 0 | United Kingdom 91.0%, France 3.0%, United States of America 1.0%, Sierra_Leone 1.0%, Germany 1.0% | 16–03–2020 | 67 | UK lineage, previously B.1.5.30 |
| B.1.425 | 1 | 1 | United States of America 90.0%, Turkey 10.0%, Italy 0.0% | 296 | USA lineage (UT), reassigned from part of B.1.370 |
a
https://cov‐lineages.org/lineages.html.