美国边境附近的致命螺丝虫爆发威胁到牲畜,促使美国紧急采取遏制措施。 A deadly screwworm outbreak near the U.S. border threatens livestock, prompting urgent U.S. containment efforts.

自1960年代以来,从美国根除的新世界食虫疫情已蔓延到墨西哥新莱昂州萨比纳斯·伊达尔戈,距离美国边境不到70英里,对牲畜和粮食安全的威胁日益严重。 A New World Screwworm outbreak, eradicated from the U.S. since the 1960s, has reached Sabinas Hidalgo, Nuevo León, Mexico—less than 70 miles from the U.S. border—posing a growing threat to livestock and food security. 寄生虫在伤口中产卵,导致暖血动物致命组织损伤。 The parasitic fly lays eggs in wounds, leading to fatal tissue damage in warm-blooded animals. 美国农业部正在采取五部分战略作出回应,包括7.5亿美元用于德克萨斯一个无菌苍蝇设施,加强边境各州的监视,以及限制墨西哥的牛、野牛和马进口。 The USDA is responding with a five-part strategy, including $750 million for a sterile fly facility in Texas, intensified surveillance across border states, and import restrictions on cattle, bison, and horses from Mexico. 在美国测试的13 000多个样本没有检测到,但当局保持警惕,准备潜在的传播,并与墨西哥合作遏制疫情的爆发。 Over 13,000 samples tested in the U.S. have shown no detections, but authorities remain vigilant, preparing for potential spread and working with Mexico to contain the outbreak.