Sequences seen: 25
First seen on: 2023-03-12
Last seen on: 2023-09-20
More data: https://outbreak.info/situation-reports?pango=XBB.1.42
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.