Fig. 3: Model-predicted environmental suitability for dengue, chikungunya, and Zika, and yellow fever after accounting for spatial variation in surveillance capacity.
From: The overlapping global distribution of dengue, chikungunya, Zika and yellow fever

Suitability values represent the probability of one or more cases of diseases having occurred up to 2024, based on the average environmental conditions of a ___location over the period 2010–2020. Values close to 1 indicate highly suitable conditions for transmission. a Areas without a suitable temperature range for transmission have been set to 0 for dengue, chikungunya, and Zika. b Areas outside the countries at risk, endemic, or potentially at risk for yellow fever as defined by the WHO yellow fever risk assessment working group31 have been set to 0. The maps were created using public-___domain Natural Earth data, accessed through the rnaturalearth package in R86.