CDC: Zika virus causes microcephaly and other serious birth defects

April 14, 2016

Sufficient evidence has accumulated to infer a causal relationship between prenatal Zika virus infection and microcephaly and other severe brain anomalies, according to a Centers for Disease Control and Prevention (CDC) study published April 13 by the New England Journal of Medicine. The study evaluated the evidence to date using standard criteria used to identify potentially harmful exposures during pregnancy and evidence of causation. The timing of Zika virus infection associated with severe microcephaly and other severe birth defects of the brain appears to be in the late first or early second trimester, the authors said, noting that more research is needed to understand the full spectrum of defects caused by congenital infection and the relative risks for infants born to women infected at different times during pregnancy. Click here to read more from the American Hospital Association.


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