Seroconversion in Wild Birds and Local Circulation of West Nile Virus, Spain
Jordi Figuerola* , Ramon Soriguer*, Gema Rojo†, Concepción Gómez Tejedor†, and Miguel Angel Jimenez-Clavero‡
Author affiliations: *Consejo Superior de Investigaciones Científicas, Seville, Spain; †Laboratorio Central de Veterinaria, Algete, Madrid, Spain; ‡Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, Spain;
Figure 1. Prevalence of common coots with neutralizing antibodies against West Nile virus (WNV), Doñana, Spain, 2003–2006. Numbers above bars indicate sample size for each period. Error bars show 95% confidence intervals.
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