Understandably, lots of us are worried about the possible link between the Zika virus and a reported increase in cases of microcephaly, a birth defect in which a baby’s brain doesn’t fully develop in the womb. Now, a group of doctors in Argentina claims these birth defects aren’t actually caused by the mosquito-transmitted Zika virus. Instead, these doctors who call themselves “Physicians in Crop-Sprayed Towns” claim a larvicide (specifically pyriproxyfen) used to kill off mosquito eggs in the public water supply is actually to blame. The report has been shared all over social media (like the image below) and even received mainstream coverage by the London Telegraph and Tech Times. Unfortunately, it’s completely false. Read more.