美国农业部（USDA）于10月21日星期三确认，在美国野生动物中首次发现食肉新世界螺旋蝇，该寄生虫在得克萨斯州佩科斯县一个野猎场的一头猎人射杀的麋鹿身上被发现。
USDA Confirms First U.S. Wildlife Detection of Flesh-Eating Screwworm in Texas Elk On Wednesday, October 21, 2026, the U.S. Department of Agriculture (USDA) confirmed the first detection of the flesh-eating New World screwworm in U.S. wildlife, discovered in a hunter-killed elk on a game ranch in Pecos County, Texas.
作为回应，得克萨斯州动物卫生委员会正在与州野生动物官员和美国农业部合作，扩大受感染区域并开展监测。
In response, the Texas Animal Health Commission is expanding its infested zone while partnering with state wildlife officials and the USDA to conduct surveillance.
这种害虫几十年前已被根除，但已从墨西哥向北传播，此前促使美国禁止进口墨西哥牛只，限制了国内供应，并推动牛肉价格创下历史新高。
Eradicated decades ago, the pest has moved north through Mexico, prompting prior U.S. bans on Mexican cattle imports that restricted domestic supply and drove beef prices to record highs.
尽管进口限制自8月起开始分阶段重新开放，但2026年美国已检测出数十起病例。
Although import restrictions began a phased reopening in August, dozens of U.S. cases have been detected in 2026.