Update: 7 May
WHO: "44 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitoes."
Where in the world is Zika?
The coloured dots show the range of the Aedes aegypti mosquito, according to a dataset published by Nature. Darker colours indicate only that there were more reports of the insect in the review of medical literature.
Other data suggest the actual spread of the insect, according to various models.