The microcephaly in babies, being caused by Pyriproxyfen. A larvicide manufactured by Sumitomo Chemical, which is a subsidiary company associated with Monsanto.
1 http://naturalsociety.com/rio-grande-do-sul-suspends-pyriproxyfen-zika-virus-monsanto-rumors-68365/
2 http://thefreethoughtproject.com/doctors-groups-deny-microcephaly-zika-connection-blame-monsanto-linked-pesticide-birth-defects/
3 http://www.globalresearch.ca/brazil-officials-focus-on-sumitomo-monsanto-pesticide-used-to-fight-zika-after-it-was-exposed-as-a-possible-cause-of-birth-defects/5510995