Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 2025 Aug;31(8):1600-1603.
doi: 10.3201/eid3108.250255. Epub 2025 Jun 18.

Case Report of Clade Ib Monkeypox Virus Infection Linked to Travel to Democratic Republic of the Congo, Thailand, 2024

Case Reports

Case Report of Clade Ib Monkeypox Virus Infection Linked to Travel to Democratic Republic of the Congo, Thailand, 2024

Drunphob Srithammavong et al. Emerg Infect Dis. 2025 Aug.

Abstract

We report clade Ib monkeypox virus infection in a patient who returned to Thailand from the Democratic Republic of the Congo, the subclade epicenter. Improved diagnostic testing, public health response, and surveillance systems for mpox are needed in Thailand, and preexposure mpox vaccination should be considered, especially for high-risk persons.

Keywords: Democratic Republic of the Congo; Thailand; clade Ib; monkeypox virus; mpox; public health; real-time PCR; sexually transmitted infections; viruses; zoonoses.

PubMed Disclaimer

Figures

Figure
Figure
Lesions on patient who had clade Ib monkeypox virus infection linked to travel to the Democratic Republic of the Congo, Thailand, 2024. A, B) Necrotic papules with overlying scabs on the patient’s penis (A) and right thigh (B). C) Maculopapular rash and a pustule on left thigh.

Similar articles

  • Epidemiology and phylogenomic characterisation of two distinct mpox outbreaks in Kinshasa, DR Congo, involving a new subclade Ia lineage: a retrospective, observational study.
    Wawina-Bokalanga T, Merritt S, Kinganda-Lusamaki E, Jansen D, Halbrook M, O'Toole Á, Pukuta-Simbu E, Hasivirwe Vakaniaki E, Ola-Mpumbe R, Kwete-Mbokama P, Akil-Bandali P, Kacita C, Ponga-Museme A, Mapenzi-Kashali N, Amuri-Aziza A, Tshiani-Mbaya O, Paku-Tshambu P, Dantas PHLF, De Block T, Lokilo-Lofiko E, Muswamba-Kayembe C, Makangara-Cigolo JC, Luakanda-Ndelemo G, Kelvin DJ, Pratt C, Ayouba A, Tessema S, Mauro Rezende A, Hensley LE, Delaporte E, Mwamba D, Subissi L, Liesenborghs L, Hoff NA, Peeters M, Low N, Ahuka-Mundeke S, Muyembe-Tamfum JJ, Rimoin AW, Kindrachuk J, Vercauteren K, Rambaut A, Mbala-Kingebeni P. Wawina-Bokalanga T, et al. Lancet. 2025 Jul 5;406(10498):63-75. doi: 10.1016/S0140-6736(25)00294-6. Lancet. 2025. PMID: 40617661
  • Clade Ia Monkeypox Virus Linked to Sexual Transmission, Democratic Republic of the Congo, August 2024.
    Makangara-Cigolo JC, Kenye KM, Lunyanga L, Jansen D, Kinganda-Lusamaki E, Kavira S, Amuri-Aziza A, Malembi E, Anta Y, Akil-Bandali P, Lokilo-Lofiko E, Vakaniaki EH, Nundu SS, Pukuta-Simbu E, Paku-Tshambu P, Ola-Mpumbe R, Lumembe-Numbi R, Kabamba-Lungenyi G, Luakanda G, Kacita C, Shongo-Lushima R, Mwamba D, O'Toole Á, Merritt S, Halbrook M, Mukadi-Bamuleka D, Hoff NA, Low N, Bogoch I, Cevik M, Gonsalves G, Shaw S, Subissi L, Liesenborghs L, Ayouba A, Peeters M, Delaporte E, Tessema S, Rimoin AW, Muyembe-Tamfum JJ, Rambaut A, Vercauteren K, Ahuka-Mundeke S, Kindrachuk J, Wawina-Bokalanga T, Mbala-Kingebeni P. Makangara-Cigolo JC, et al. Emerg Infect Dis. 2025 May;31(5):1033-1037. doi: 10.3201/eid3105.241690. Epub 2025 Apr 22. Emerg Infect Dis. 2025. PMID: 40263113 Free PMC article.
  • An urgent need for diagnostic tools to address global mpox public health emergencies.
    Liu BM, Yang Z. Liu BM, et al. J Clin Microbiol. 2025 Jul 9;63(7):e0132124. doi: 10.1128/jcm.01321-24. Epub 2025 Jun 5. J Clin Microbiol. 2025. PMID: 40470950 Free PMC article. Review.
  • Molecular detection and isolation of clade Ib monkeypox virus, Canada, November 2024.
    Chan M, Audet J, Prévost J, Soriano K, Doan K, Garnett L, Deschambault Y, Medina S, Stefopulos M, Paul J, Lee S, Kurbis C, Fatoye B, Duggan AT, Eaton K, Chato C, Hole D, Papineau A, Dust K, Van Caeseele P, Hercules YR, Gearhart S, Embil J, Walkty A, Romaniuk D, Safronetz D, Strong JE. Chan M, et al. Euro Surveill. 2025 Jun;30(25):2500402. doi: 10.2807/1560-7917.ES.2025.30.25.2500402. Euro Surveill. 2025. PMID: 40575914 Free PMC article.
  • Emergence of Clade Ib Monkeypox Virus-Current State of Evidence.
    Satheshkumar PS, Gigante CM, Mbala-Kingebeni P, Nakazawa Y, Anderson M, Balinandi S, Mulei S, Fuller J, McQuiston JH, McCollum AM, Hutson CL. Satheshkumar PS, et al. Emerg Infect Dis. 2025 Aug;31(8):1516-1525. doi: 10.3201/eid3108.241551. Emerg Infect Dis. 2025. PMID: 40705002 Free PMC article. Review.

References

    1. World Health Organization. Mpox. 2024. [cited 2024 Nov 20]. https://www.who.int/news-room/fact-sheets/detail/mpox
    1. Ligon BL. Monkeypox: a review of the history and emergence in the Western hemisphere. Semin Pediatr Infect Dis. 2004;15:280–7. 10.1053/j.spid.2004.09.001 - DOI - PMC - PubMed
    1. Centers for Disease Control and Prevention. Ongoing clade II mpox global outbreak. 2025. [cited 2025 Mar 31]. https://www.cdc.gov/mpox/outbreaks/2022/index-1.html
    1. World Health Organization. Disease outbreak news. Mpox—Democratic Republic of the Congo. 2024. [cited 2024 Nov 21]. https://www.who.int/emergencies/disease-outbreak-news/item/2024-DON522
    1. Royal Thai Embassy. Athens. List of countries which are declared yellow fever infected areas [cited 2025 Jun 18]. https://athens.thaiembassy.org/en/publicservice/17708-list-of-countries-...

Publication types

LinkOut - more resources