A resident of Washington state died this week after a severe case of bird flu, a new and worrying sign that the virus continues to be a threat in the United States.

NEW YORK (AP) — A person in Washington state has died from complications of the bird flu, the first such U.S. death in a year. The Yakima County resident, who had previous health conditions, was exposed to avian influenza at a dairy with infected cattle and had been hospitalized, county health officials announced…