Abstract
Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease that can be contracted by direct contact with viremic animals or humans. In West Africa, recurrent CCHF outbreaks have been constantly observed in Mauritania and Senegal. Moreover, acquisition and epidemiology of the infection in humans are correlated with the occurrence and the seroprevalence of the virus in livestock. The main objective of this study is to provide updated information on the local spread of CCHF in animals in the northern region of Senegal. Out of a total of 283 animal sera collected, CCHF-specific antibodies were identified in 92 (32.5%; confidence interval [CI]95% 27.1-38.3) sera by double antigen sandwich enzyme-linked immunosorbent assay (ELISA) test. The prevalence of CCHF virus (CCHFV) infection among horses, cattle, sheep, dogs, donkeys, and goats was 70.3% (45/64), 57.1% (8/14), 22.1% (30/136), 18.2% (2/11), 17.2% (5/29), and 6.9% (2/29), respectively. The antibody titers were found significantly affected by age (p < 0.0001) and gender (p < 0.05). High tick infestation by Rhipicephalus spp. and Hyalomma spp. was recorded on horses. The high seroprevalence to CCHFV among animals in the northern region of Senegal observed in this study indicates the permanent presence of the infection in the northern region of the country suggesting the need to strengthen surveillance plans for CCHF in Senegal.
Published Version
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