Fig. 1

a Weekly number of reported chikungunya cases in Colombia (black), along with the mean and 95% CI from the (green) national-level model. b National-level totals derived by combining the results of each departmental model with either a (blue) single-patch model per department, or (red) the multi-patch models. c Maps of Colombia showing the spatial scale of the different models, with the color coding for the different models used in all figures