It's still not sure what the cause is... but the scaremongers are saying it will get you soon.
Avoid unnecessary inoculations - every expecting mother in brazil got a anti viral jag just before the breakout. Some say the jag with the new formulation caused this.
Zika has been around since the forties and there is always some cases every year. Some doctors say that they are mixing zika up with the immunization program that they rolled out in Brazil. about five percent is genuine zika.