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Figure 1 | Emerging Themes in Epidemiology

Figure 1

From: Assessment of methods for prediction of human West Nile virus (WNV) disease from WNV-infected dead birds

Figure 1

Assessment of delay period between predictor variable [(Positive/Tested)*(Pop./Area)] per county and number of human WNV disease cases. (a) Average of predictor variable (solid curve) versus number of human WNV cases (column bars), by day of transmission period (CDC weeks 26–41). (b) Results of two-sample Kolmogorov-Smirnov test statistic D analysis, for daily distribution of average of predictor variable and number of human cases. (c) Smoothed adjacent point averaging with degree n = 25 points. The smoothed value at day t is the average of the data points in the interval [t-(n-1)/2, t+ (n-1)/2], inclusive. Solid curve represents the predictor variable, dashed curve the human cases. (d) Correlation coefficients between smoothed distributions.

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Emerging Themes in Epidemiology

ISSN: 1742-7622