The ongoing Zika virus (ZIKV) epidemic in the Americas raises urgent questions about the risks of microcephaly in the children of ZIKV-infected mothers. New research into the 2013–2014 ZIKV outbreak in French Polynesia supports a link between maternal ZIKV infection during the first trimester of pregnancy and microcephaly.

Nature Review in Neurology: Molnár, Z., Kennedy, S. Risks of Zika virus during the first trimester of pregnancy. Nat Rev Neurol 12, 315–316 (2016).