SARS-CoV-2 lineage BA.4.1

Overview:

Sequences seen: 15903


First seen on: 2021-12-14

Last seen on: 2023-03-14


More data: https://outbreak.info/situation-reports?pango=BA.4.1


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.