Sequences seen: 508
First seen on: 2020-03-19
Last seen on: 2021-09-29
More data on outbreak.info: https://outbreak.info/situation-reports/B.1.222
Note: In the above data, "seen" refers to the date the sample was collected, unless that date was not provided for a sequence, in which case it refers to the date it was submitted to NCBI.