Sequences seen: 313
First seen on: 2021-04-15
Last seen on: 2022-04-16
More data: https://outbreak.info/situation-reports?pango=BA.1.1.7
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.