Taiwan faces challenges on the emerging avian influenza A (H7N9) virus in China

Department of Internal Medicine, National Defense Medical Center, Taipei, TaiwanReceived 4 May 2013; received in revised form 7 May 2013; accepted 8 May 2013At the end of March 2013, China reported the first identi-fication of three fatal cases of human infection with a novelavian influenza A (H7N9) virus during February and March2013.