Fig. 15

Correlation between index P and Zika. Monthly averages of index P are shown in blue, and the average incidence of Zika is shown in pink. Shaded areas correspond to the 95% confidence intervals for the index. For each city, the index averages are computed for any year between 2010 and 2020 for which climate data is available. The geographical localisation of these cities is shown in Fig. 10. Pearson’s correlation is shown in each subplot