Figure 3.
Course of the antibody response to WNV in serum from inoculated red-legged partridges, as measured by virus-neutralization test (VNT, expressed as log titres) and competitive ELISA (cELISA, expressed as n° of positives). Upper panel: Solid line/open squares represent the neutralizing antibody response in individuals inoculated with WNV Morocco/2003 strain; dashed line/closed circles represent the neutralizing antibody response in individuals inoculated with WNV Spain/2007 strain (error bars: standard deviation, only available for those data where n ≥ 3; n: 1-5). Lower panel: ELISA results are represented by black bars (sera from individuals inoculated with WNV Spain/2007 strain) and white bars (sera from individuals inoculated with WNV Morocco/2003 strain). Over the bars, numbers of positive/examined serum samples are indicated.