From: Quantifying the risk of local Zika virus transmission in the contiguous US during the 2015–2016 ZIKV epidemic
Region
Year 2015
Year 2016
Likelihood (%)
95% CI (%)
Caribbean
43.81
(10.47–61.98)
40.15
(14.09–59.79)
South America
27.67
(27.87–78.42)
(16.10–47.31)
Central America and Mexico
10.50
(3.61–20.39)
30.02
(17.54–48.52)