This is just an opinon on Zika for what ita worth.
In Brazil, thw government mandated that all pregnant women must get MMR(memory's foggy but i think MMR is the one) vaccine. Shortly after that is when the numerous cases of microcephally occurred. That vaccine is catagory D (unsafe in pregnancy) in America.
They needed a culprit to blame the microcephaly cases in and Zika was a good excuse. They couldnt admit it was the vaccine…lawsuits.
Most cases of microcephy tested neg for zika.
Havent reaearched this in a while so thats about all i remember.