Yellow fever has been subjected to partial control for decades, but there are signs that case
numbers are now increasing globally, with the risk of local epidemic outbreaks. Dengue
case numbers have also increased dramatically during the past 40 years and different
serotypes have invaded new geographical areas. Despite the temporal changes in these
closely related diseases, and their enormous public health impact, few attempts have been
made to collect a comprehensive dataset of their spatial and temporal distributions. For this …