Serosurvey on Sheep Unravel Circulation of Rift Valley Fever Virus in Nigeria
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2020 EcoHealth Alliance
Short Communication
Serosurvey on Sheep Unravel Circulation of Rift Valley Fever Virus in Nigeria A. M. Adamu ,1 S. I. Enem,1 E. O. Ngbede,2 O. A. Owolodun,3 A. A. Dzikwi,4 O. A. Ajagbe,5 D. D. Datong,1 G. S. Bello,6 M. Kore,7 S. S. Yikawe,8 L. Allam,9 and A. Y. Simon10,11 1
Department of Veterinary Public Health and Preventive Medicine, University of Abuja, Abuja, Nigeria Department of Veterinary Microbiology, Federal University of Agriculture Makurdi, Makurdi, Nigeria 3 Biotechnology Division, National Veterinary Research Institute, Vom, Nigeria 4 Department of Veterinary Public Health and Preventive Medicine, University of Jos, Jos, Nigeria 5 Department of Veterinary Microbiology, University of Abuja, Abuja, Nigeria 6 United Nations Children Fund, Yola, Adamawa State, Nigeria 7 Department of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria 8 Nigerian Air Force Hospital, Abuja, Nigeria 9 Veterinary Teaching Hospital, Ahmadu Bello University, Zaria, Nigeria 10 African Centre of Excellence On Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University, Zaria, Nigeria 11 Centre for Blood Research and Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada 2
Abstract: Rift Valley fever is an arboviral zoonoses causing severe morbidity and mortality among humans and animals in many African countries. A cross-sectional study in populations of sheep reared around the GidanWaya Forest Reserve located in Jema’a LGA of Kaduna State, Nigeria to determine the serological evidence of exposure to Rift Valley fever virus (RVFV) using a commercial competitive enzyme-linked immunosorbent assay. Of the 200 sheep sampled, 9 (4.5%; 95 CI 2.23–8.33) were positive for antibodies to the RVFV. The detection of antibodies suggests a covert circulation among the sheep and may be indicative of a subclinical infection. Keywords: Rift Valley fever virus, Sheep, Nigeria, Enzyme linked immunosorbent assay
Rift Valley fever (RVF) is an acute arboviral zoonoses (caused by the RVF virus, a Phlebovirus in the Family Phenuiviridae) presents a substantial threat to human and public health (Adams et al. 2017). The disease has been recorded in domestic livestock and wildlife (Gur et al. 2017; Clark et al. 2018). RVF is an emerging zoonotic disease with negative economic and public health impact resulting
Correspondence to: A. M. Adamu, e-mail: [email protected]
in it been listed among high-priority diseases by the World Health Organization for Animal Health (OIE) and World Health Organization (WHO) (Himieden et al. 2014; Clark et al. 2018). Currently, there is no fully licensed vaccine for veterinary or human use and the geographical spread of competent vectors to non-endemic areas coupled with global climate change poses a significant threat of the transboundary spread of RVFV. Serological evidence of the disease has been previously reported in livestock in Nigeria (Olaleye et al. 1996), but its
A. M. Adamu et al.
current status i
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