美国停止从墨西哥进口动物活体,因为食肉螺丝苍蝇复生。 U.S. halts live animal imports from Mexico due to resurgence of flesh-eating screwworm fly.

美国暂停从墨西哥进口活牛、马和野牛, 原因是新世界螺旋虫, 这是一种寄生虫, 幼虫食用温暖的动物肉。 The U.S. has suspended imports of live cattle, horses, and bison from Mexico due to the New World screwworm, a parasitic fly whose larvae feed on the flesh of warm-blooded animals. 害虫于1966年在美国被消灭,但又在墨西哥重新出现,引起人们对其向北蔓延的担忧。 The pest was eradicated in the U.S. in 1966 but has reappeared in Mexico, prompting concerns about its spread northward. 得克萨斯州计划建立一个绝育设施来防治苍蝇,美国立法者已提出立法来资助这一倡议。 Texas plans to build a sterilization facility to combat the fly, and U.S. lawmakers have proposed legislation to fund this initiative. 寄生虫可造成牲畜致命感染,导致牛肉价格上升,如果进一步扩散,可能导致牛群死亡。 The parasite can cause fatal infections in livestock, leading to higher beef prices and potential cattle culls if it spreads further.