The conspiracists suggest a genetically modified mosquito gone wrong here
When was the first time anyone even heard of “ Zika” ?
Goes back to 1947.
1947. Uganda. it took until 2014(!) to make it across the ocean to the South America. Which gets my conspiracy juices flowing. It made it across the lower hemisphere of asia, but NOT china, russia, or Europe? If Russia backs out of the Olympics, we'll know for sure something's going on.
http://www.zikavirusnet.com/history-of-zika.html
See my thesis, above.