nextstrain/nextclade_data 2025-12-10--14-52-38Z

on GitHub

This release contains changes for datasets:

• Mpox virus (All clades) (nextstrain/mpox/all-clades)
• Mpox virus (Clade I) (nextstrain/mpox/clade-i)
• Mpox virus (Clade IIb) (nextstrain/mpox/clade-iib)
• Mpox virus (Lineage B.1) (nextstrain/mpox/lineage-b.1)

Mpox virus (All clades) (nextstrain/mpox/all-clades)

• Breaking change: outbreak nomenclature now follows the system described in Ruis et al. (2025). As a result, outbreak hMPXV-1 is now called sh2017. In addition, the clade Ib outbreak is labeled as outbreak sh2023, and the clade Ia outbreak described in Wawina-Bokalanga et al. (2025) is labeled as outbreak sh2024.
• The clade Ib/IIb recombinant described in Pullan et al. (2025) is included in the reference tree with the ad-hoc clade and outbreak labels Ib/IIb and rec2025, respectively.

Mpox virus (Clade I) (nextstrain/mpox/clade-i)

• Breaking change: outbreak nomenclature now follows the system described in Ruis et al. (2025). As a result, outbreak hMPXV-1 is now called sh2017. In addition, the clade Ib outbreak is labeled as outbreak sh2023, and the clade Ia outbreak described in Wawina-Bokalanga et al. (2025) is labeled as outbreak sh2024.

Mpox virus (Clade IIb) (nextstrain/mpox/clade-iib)

• Breaking change: outbreak nomenclature now follows the system described in Ruis et al. (2025). As a result, outbreak hMPXV-1 is now called sh2017.

Mpox virus (Lineage B.1) (nextstrain/mpox/lineage-b.1)

• Breaking change: outbreak nomenclature now follows the system described in Ruis et al. (2025). As a result, outbreak hMPXV-1 is now called sh2017.