15th April 2016
"Zika virus is a cause of Microcephaly and other severe fetal brain defects," scientists at the Centers for Disease Control and Prevention (CDC) have confirmed.
The study, published in the New England Journal of Medicine, describes a rigorous weighing of evidence using established scientific criteria.
Tom Frieden, director of the CDC said: "We've now confirmed what mounting evidence has suggested, affirming our early guidance to pregnant women and their partners to take steps to avoid Zika infection and to health care professionals who are talking to patients every day.
"We are working to do everything possible to protect the American public."