Sequences seen: 52
First seen on: 2023-11-30
Last seen on: 2024-03-27
More data: https://outbreak.info/situation-reports?pango=JN.1.21
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.