U.S. FDA issues emergency use authorization for Zika test: Roche

The U.S. Food and Drug Administration on Monday issued emergency authorization for a Zika diagnostics test from Swiss drugmaker Roche, skirting normal approval channels as the regulator moves to fight the disease's spread. Zika virus, detected in Brazil and elsewhere last year before spreading to the Americas, is associated with microcephaly, a birth defect characterized by an unusually small head and potential developmental problems. Through last week, the United States reported 2,517 Zika case