Washington state resident dies from bird flu following exposure to infected cattle

A person in Washington state has died from complications of the bird flu, the first such U.S. death in a year.

美国华盛顿州一名有基础疾病的居民在接触感染H5N1的奶牛后死亡，成为该国一年来首例禽流感死亡病例。CDC表示病毒基因序列未出现更易传播或致病性增强的变化，公众风险仍低。