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
Review
. 2025 Jun 2;231(5):e825-e829.
doi: 10.1093/infdis/jiaf006.

Emergence and Global Spread of Mpox Clade Ib: Challenges and the Role of Wastewater and Environmental Surveillance

Affiliations
Review

Emergence and Global Spread of Mpox Clade Ib: Challenges and the Role of Wastewater and Environmental Surveillance

Ananda Tiwari et al. J Infect Dis. .

Abstract

Several African countries, mainly the Democratic Republic of Congo, Burundi, and Uganda, are facing highly transmissible mpox clade Ib epidemics, prompting the World Health Organization to declare a Public Health Emergency of International Concern. It has spread to key travel hubs like Kinshasa, Bujumbura, and Kampala, increasing international spread risks. Current mitigation efforts focus mainly on medical care, diagnostics, vaccination, and infection prevention, but overlook wastewater and environmental surveillance (WES). WES can be effective in detecting hotspots and enabling rapid response through enhanced data collection and genomic sequencing. This perspective article reviews the latest outbreak situation and advocates integrating WES into response strategies.

Keywords: Democratic Republic of Congo; epidemics; mpox clade Ib; wastewater-based surveillance.

PubMed Disclaimer

Conflict of interest statement

Potential conflicts of interest . All authors do not have any conflicts of interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed.

References

    1. World Health Organization (WHO) . Mpox (monkeypox). Geneva: WHO, 2024. https://www.who.int/news-room/fact-sheets/detail/mpox.
    1. Americo JL, Earl PL, Moss B. Virulence differences of mpox (monkeypox) virus clades I, IIa, and IIb.1 in a small animal model. Proc Natl Acad Sci 2023; 120:e2220415120. - PMC - PubMed
    1. World Health Organization (WHO) . Mpox multi-country external situation, report No. 42, 9 November 2024. Geneva: WHO.
    1. Democratic Republic of Congo Government . Public Health Emergency Operations Center (COU-SP). National integrated plan for preparedness and response to the mpox virus epidemic in the Democratic Republic of Congo, 2024.
    1. World Health Organization (WHO) . Disease outbreak news: mpox—Democratic Republic of the Congo, 2024. Geneva: WHO.