摘要
Dear Editor, In February and March 2013, a novel influenza A （H7N9） virus emerged in China, causing an acute respiratory distress syndrome and occasionally multiple organ failure with high fatality rates in humans （Li et al., 2014）. A total of 681 laboratory-confirmed cases and 275 deaths have been reported as of November 13th,
Dear Editor, In February and March 2013, a novel influenza A （H7N9） virus emerged in China, causing an acute respiratory distress syndrome and occasionally multiple organ failure with high fatality rates in humans （Li et al., 2014）. A total of 681 laboratory-confirmed cases and 275 deaths have been reported as of November 13th,
