Table 1.
Identified viral lineages in the community of Japan.
| Lineage | Designation by WHO | Designation by CDC (USA) | Designation by ECDC (Europe) | Designation by NIID (Japan) | Number of samples | Identified period |
|---|---|---|---|---|---|---|
| B | – | – | – | – | 1 | February 2020 |
| B.1 | – | – | – | – | 2 | March 2020 |
| B.1.1 | – | – | – | – | 8 | March to November 2020 |
| B.1.149 | – | – | – | – | 1 | March 2020 |
| B.1.1.284 | – | – | – | – | 20 | July 2020 to January 2021 |
| B.1.1.214 | – | – | – | – | 96 | August 2020 to February 2021 |
| B.1.411 | – | – | – | – | 4 | December 2020 |
| B.1.346 | – | – | – | – | 3 | January 2021 |
| R.1 | – | – | – | VOI | 20 | January to May 2021 |
| P.1 | VOC | VOC | VOC | VOC | 1 | February 2021 |
| B.1.1.220a | – | – | – | – | 3 | April 2021 |
| B.1.1.7 | VOC | VOC | VOC | VOC | 165 | April to June 2021 |
| B.1.617.2 | VOC | VOC | VOC | VOC | 1 | June 2021 |
| Total | 325 |
VOI, variant of interest; VOC, variant of concern; WHO, World Health Organization; CDC, Centers for Disease Control and Prevention; ECDC, European Centre for Disease Prevention and Control; NIID, National Institute of Infectious Diseases.
a
Harboring E484K mutation.