UN urges China to act as bird flu deaths spike

The UN's food agency on Friday urged China to step up efforts to contain and eliminate a strain of bird flu which has killed scores of people this year.The Food and Agriculture Organization (FAO) warned that countries neighbouring China were at "high risk" of exposure to the H7N9 strain, which has recently mutated to become far more deadly for chicken than it had been.The agency also warned that wild birds could carry the strain of the virus to Europe and the Americas, adding that it was baffled