XN7VR Orthopoxvirus monkeypox Clade IIb

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

Clade IIa and Clade IIb are two recognised subclades of the Orthopoxvirus monkeypox Clade II. Clade IIb refers to a group of variants largely circulating in the 2022 global outbreak.

synonyms

• Orthopoxvirus monkeypox Clade IIb
• Clade IIb of Monkeypox virus (deprecated)
• Clade IIb of Orthopoxvirus monkeypox
• Monkeypox virus clade IIb (deprecated)
• Mpox virus Clade IIb

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