周五，中国东部地区出现第六例H7N9禽流感死亡病例。与此同时，上海农业部门开始扑杀当地一个市场中的禽鸟，以遏制禽流感的扩散。
A deadly new strain of bird flu claimed its sixth life in eastern China on Friday as agricultural authorities in Shanghai began slaughtering birds in a local market in an effort to stem the spread of the disease .
六禽