Fig. 1
From: Mapping the cryptic spread of the 2015–2016 global Zika virus epidemic
Schematic overview of the methods. Blue boxes denote input data, and dark orange boxes output estimates. Note that in the onward spread analysis, we further imposed thermal restrictions for ZIKV transmission and applied a threshold value for the estimated environmental suitability of Ae. aegypti to minimise false positives. Refer to the “Methods” section “Susceptible spatial units with cryptic spread of ZIKV” for more details