| 1. | The japanese health ministry officials released the findings of a serological study conducted after an avian influenza outbreak at a poultry farm in kyoto prefecture in february 2004 , of which 180 , 000 birds died and 50 , 000 birds were destroyed 日本京都府一个养鸡场曾于2004年2月出现禽流感爆发,期间有180 , 000只禽鸟死亡及50 , 000只禽鸟被销? 。 |