What’s the most definitive article on Zika causing microcephaly?
I’d like to read it.
Have you read this most recent article ?
It is the source for this article, as all babies had exposure to Zika and all had microcephally.
As stated in Atkissson's article, there is a statistical correlation between exposure to Zika and microcephally.
However, microcephally exists 'in the wild' ,even absent Zika, and the cause in these cases remain unknown at this time.