Scientists May Have Finally Solved Zika's Scariest Mystery

Public health experts have long suspected that a spike in birth defects in Central and South America was linked to the Zika virus, but they didn't know how. Today, the picture became a little bit clearer. A team of US researchers has discovered what they believe could be the mechanism by which the mosquito-borne virus hinders brain development in unborn children. Their study finds that the virus targets the outer layer of fetal brain cells, killing some cells and preventing others from dividing ...