We evaluated the prevalence of Rift Valley fever virus IgG and IgM in human serum samples (n = 1,276) collected in 2013-2014 in northern Botswana. Our findings provide evidence of active circulation of this virus in humans in the absence of clinical disease in this region.
Keywords: Aedes mosquitos; Botswana; Culex mosquitos; One Health; Rift Valley fever; arboviruses; infectious disease transmission; livestock; pregnancy outcomes; public health; viruses.