Oct 13 – 15, 2025
Hotel Berlin, Berlin
Europe/Berlin timezone
All review results have been sent out on August 20th + September 2nd.

High Seroprevalence of Crimean-Congo Hemorrhagic Fever Virus Among Dromedary Camels in Northern Nigeria: Implications for One Health Surveillance

Oct 13, 2025, 6:39 PM
1m
Area C

Area C

Poster presentation One Health in Public Health Snacks & Poster Viewing I

Speaker

Dr Bitrus Inuwa (National Veterinary Research Institute)

Description

Crimean-Congo Hemorrhagic Fever (CCHF) is a tick-borne viral zoonotic disease that pose a growing public health concern. It is primarily maintained and transmitted by Hyalomma ticks, with livestock such as dromedary camels (Camelus dromedarius) acting as amplifying hosts. In Nigeria, human infections with CCHFV are rarely reported, reflecting limited surveillance and gaps in understanding its epidemiology at the human-animal interface. This study investigated CCHF seroprevalence in dromedary camels across three northern Nigerian states with high levels of human-animal interactions. Using a commercial ELISA kit, we screened 687 sera, with 655 (95.34%) testing positive for anti-CCHFV IgG antibodies. By location, Kano had a seroprevalence of 90.44% (246/272), in Borno 97.74% (259/265), and in Yobe 100% (150/150). These findings demonstrate widespread exposure to CCHFV among camels in these areas. Given the high seropositivity rate in a known amplifying host and the significant human-animal interactions, undetected human infection is plausible. Early clinical signs of CCHF often mimic other endemic febrile illnesses, which might be misdiagnosed. These results underscore the urgent need for integrated One Health surveillance to assess human exposure, improve clinical and diagnostic recognition, and guide evidence-based One Health interventions across Nigeria.

Keywords

Crimean-Congo Hemorrhagic Fever Virus (CCHFV); Dromedary camels; Zoonotic disease; One Health; Surveillance; Misdiagnosis

Registration ID OHS25-96
Professional Status of the Speaker PhD Student
Junior Scientist Status Yes, I am a Junior Scientist.

Author

Olanrewaju Igah (National Veterinary Research Institute)

Co-authors

Prof. Asabe Adamu Dzikwi-Emennaa (University Of Jos) Mr Oluyemi Ogunmolawa (National Veterinary Research Institute) Dr Ebere Agusi (National Veterinary Research Institute) Dr Bitrus Inuwa (National Veterinary Research Institute) Dr Judith Bakam (National Veterinary Research Institute) Dr Nicodemus Mkpuma (National Veterinary Research Institute) Dr Uwem Edet (National Veterinary Research Institute) Dr Olayinka Asala (National Veterinary Research Institute) Dr Ismaila Shittu (National Veterinary Research Institute) Dr Valerie Allendorf (Friedrich Loeffler Institute) Dr Markus Keller (Friedrich Loeffler Institute) Prof. Martin H. Groschup (Friedrich Loeffler Institute) Dr Anja Globig (Friedrich Loeffler Institute) Prof. Meseko Clement (National Veterinary Research Institute)

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