Climate determinants of total disease incidence.

GAM estimated relationships (solid black line) and corresponding 95% confidence limits (grey shaded area) between relative disease risk and minimum temperature (Tmin) with 4 (A) and 8-week (B) time lags, average temperature (Tavg) with 8-week time lag (C), maximum wind speed (WSmax) with 4 (D) and 8-week (E) time lags, precipitation with 4 (G) and 8-week (H) time lags and average humidity (Havg) with 4 week time lag (I). P values for each relationship are also shown.