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Volume 32, Number 2—February 2026

Dispatch

Characteristics and Transmission Dynamics of Global Travel-Related Mpox Cases Caused by Clade Ib Monkeypox Virus

Henry Laurenson-Schafer1, Martina McMenamin1, Lennox Kesington Ebbarnezh, Ioannis Karagiannis, Viema Biaukula, Rosamund Lewis, Masaya Kato, Michel Muteba, Jeremias D. Naiene, Felix Sanni, Tshewang Dorji, Lorenzo Subissi, Marc-Alain Widdowson, Ana HoxhaComments to Author , Olivier le Polain de Waroux, and WHO Mpox Collaborative Surveillance Group1
Author affiliation: World Health Organization (WHO) Health Emergencies Programme, Geneva, Switzerland (H. Laurenson-Schafer, M. McMenamin, L.K. Ebbarnezh, R. Lewis, L. Subissi, A. Hosha, O. le Polain de Waroux); WHO Health Emergencies Programme, Regional Office for the European Region, Copenhagen, Denmark (I. Karagiannis, M.-A. Widdowson); WHO Health Emergencies Programme, Regional Office for the Western Pacific Region, Manila, Philippines (V. Biaukula); WHO Health Emergencies Programme, Regional Office for the South-East Asian Region, New Delhi, India (M. Kato); WHO Health Emergencies Programme, Regional Office for Africa, Brazzaville, Republic of the Congo (M. Muteba, F. Sanni); WHO Health Emergencies Programme, Regional Office for the Eastern Mediterranean Region, Cairo, Egypt (J.D. Naiene); WHO Health Emergencies Programme, Regional Office for the Americas, Washington, DC, USA (T. Dorji)

Main Article

Figure 1

Transmission dynamics among global travel-related mpox cases caused by clade Ib monkeypox virus. Yellow dots represent country of exposure; arrows represent direction of travel for mpox cases reported as of June 19, 2025. Data source: World Health Organization (WHO); produced by WHO Health Emergencies Programme; copyright WHO 2026, all rights reserved.

Figure 1. Transmission dynamics among global travel-related mpox cases caused by clade Ib monkeypox virus. Yellow dots represent country of exposure; arrows represent direction of travel for mpox cases reported as of June 19, 2025. Data source: World Health Organization (WHO); produced by WHO Health Emergencies Programme; copyright WHO 2026, all rights reserved.

Main Article

1These first authors contributed equally to this article.

2Members of this group are listed at the end of this article.

Page created: January 20, 2026
Page updated: February 09, 2026
Page reviewed: February 09, 2026
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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