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Received — 4 April 2026 ⏭ Nature Medicine

Nature Medicine
Evidence of monkeypox virus clade IIb lineage A.2.2 in the Republic of the Congo and co-circulation of clade Ia, Ib and clade IIb Felix Koukouikila-Koussounda · Claude Kwe Yinda · Pembe Issamou Mayangue · Dachel Aymard Eyenet Boussam · Reiche Golmard Elenga · Leadisaelle Hosanna Lenguiya · Ghislain Dzeret Indolo · Bani Reize Vishnou Ampiri · Lucette Nathalie Macosso · Igor Judicaël Louzolo · Isaac Samuel Onyakouang · Jordy Exaucé Lyelet Demboux · Jean Medar Kankou · Aristide Gilbert Nianga · Avelin F. Aghokeng · Vincent Jacobus Munster · Fabien Roch Niama
Nature Medicine, Published online: 03 April 2026; doi:10.1038/s41591-026-04256-2Whole-genome phylogenetic analyses have identified a case of monkeypox virus clade IIb lineage in the Republic of the Congo and co-circulation of three clade lineages, emphasizing the importance of improved surveillance given the risk of possible recombination events in the future.
3 April 2026 at 08:00

Evidence of monkeypox virus clade IIb lineage A.2.2 in the Republic of the Congo and co-circulation of clade Ia, Ib and clade IIb

By: Felix Koukouikila-Koussounda · Claude Kwe Yinda · Pembe Issamou Mayangue · Dachel Aymard Eyenet Boussam · Reiche Golmard Elenga · Leadisaelle Hosanna Lenguiya · Ghislain Dzeret Indolo · Bani Reize Vishnou Ampiri · Lucette Nathalie Macosso · Igor Judicaël Louzolo · Isaac Samuel Onyakouang · Jordy Exaucé Lyelet Demboux · Jean Medar Kankou · Aristide Gilbert Nianga · Avelin F. Aghokeng · Vincent Jacobus Munster · Fabien Roch Niama

3 April 2026 at 08:00

Nature Medicine, Published online: 03 April 2026; doi:10.1038/s41591-026-04256-2

Whole-genome phylogenetic analyses have identified a case of monkeypox virus clade IIb lineage in the Republic of the Congo and co-circulation of three clade lineages, emphasizing the importance of improved surveillance given the risk of possible recombination events in the future.