Credit: Estefania Fernandez
An antibody administered soon after infection with Zika virus protected the fetuses of pregnant mice (left), while the fetuses in infected mice that did not receive the antibody withered away (right). Researchers have identified an antibody that protects against both dengue and Zika disease, a first step toward an antibody-based preventive drug to protect fetuses from brain damage caused by Zika, while also protecting their mothers from Zika and dengue.