Study suggests Zika can cross placenta

In what experts describe as another piece of evidence linking Zika with the risk of birth defects, researchers have reported finding the virus in the amniotic fluid of two pregnant women whose foetuses were diagnosed with microcephaly. In a study in the Lancet Infectious Diseases journal on Wednesday, the scientists said their finding suggests Zika virus can cross the placental barrier, but does not prove it causes microcephaly, a condition in which babies are born with abnormally small...