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West Nile virus neutralizing antibodies in wild birds from southern Spain

AutorFerraguti, Martina; Martínez de la Puente, Josué ; Soriguer, Ramón C. ; Llorente, Francisco; Jiménez-Clavero, Miguel A.; Figuerola, Jordi
Palabras claveAvian species
Flavivirus
Usutu virus
Vector-borne pathogens
Fecha de publicación2016
EditorCambridge University Press
CitaciónEpidemiology and Infection, 144(9): 1907-1911 (2016)
ResumenWest Nile virus (WNV) is an emerging vector-borne arbovirus with a zoonotic life-cycle whose main reservoir hosts are birds. In humans and horses, WNV infections rarely result in clinical disease but on occasions - depending on factors such as climatic conditions, insect communities and background immunity levels in local populations - they can lead to outbreaks that threaten public and animal health. We tested for the presence of WNV antibodies in 149 birds belonging to 32 different species. Samples were first tested using a bird-specific ELISA kit and then both positive and doubtful results were confirmed by neutralization tests using WNV and Usutu virus. WNV antibodies were confirmed in a resident Sylvia melanocephala juvenile, supporting the idea of local transmission of WNV in southern Spain in 2013. In addition, the serum from an adult blackbird (Turdus merula) showed neutralization of both WNV and Usutu virus. We discuss our results in light of the occurrence of WNV on horse farms in southern Spain in 2013.
Versión del editorhttp://dx.doi.org/10.1017/S0950268816000133
URIhttp://hdl.handle.net/10261/133476
DOI10.1017/S0950268816000133
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