The United States Department of Agriculture has confirmed the presence of the New World Screwworm in Texas, prompting several southern states to implement restrictive animal movement protocols.

美國農業部已確認德克薩斯州出現新世界螺旋蛆蟲，促使數個南部州實施限制動物移動的方案。

The current biological threat involves the New World Screwworm, a parasitic insect whose larvae consume the living tissue of warm-blooded hosts. While the species had been eradicated from the domestic territory in 1966, recent migrations from Central America and detections in Mexico during late 2024 have facilitated its re-entry. In Texas, the infestation has manifested in four confirmed cases, including a calf and a dog located in La Salle and Andrews counties.

目前的生物威脅涉及新世界螺旋蛆蟲，這是一種幼蟲會取食暖血宿主活組織的寄生昆蟲。雖然該物種於 1966 年已在國內領土被剷除，但近期從中美洲的遷徙以及 2024 年底在墨西哥的發現，促使其重新進入。在德克薩斯州，已確認四起感染個案，包括位於 La Salle 和 Andrews 縣的一頭小牛與一隻狗。

In response to this development, several jurisdictions have adopted stringent biosecurity measures. Governor Greg Abbott has issued a disaster proclamation for all Texas counties, citing imminent threats to the livestock industry and the broader economy. Texas regulations now prohibit the movement of warm-blooded animals into, out of, or within infestation zones absent a veterinary permit and inspection. Similarly, Louisiana has mandated that any animal traversing a known infestation zone must possess an Official Certificate of Veterinary Inspection. Florida has implemented emergency rules to restrict the importation of animals from high-risk areas, a move Commissioner Wilton Simpson characterized as a necessary unified response to protect the state's abundant animal populations.

針對此發展，數個司法管轄區採取了嚴格的生物安全措施。州長 Greg Abbott 為所有德克薩斯州縣發布了災難宣言，理由是畜牧業及整體經濟面臨迫切威脅。德克薩斯州的法規目前禁止在沒有獸醫許可證與檢查的情況下，將暖血動物移入、移出或在感染區內移動。同樣地，路易斯安那州規定，任何穿越已知感染區的動物必須持有官方獸醫檢查證明書。佛羅里達州則實施緊急規則以限制從高風險地區進口動物，委員 Wilton Simpson 將此舉描述為保護該州豐富動物群所必需的統一應對措施。

Other regional actors have adopted a posture of heightened surveillance. Arkansas and New Mexico have issued guidance urging livestock producers and travelers to monitor for and report symptomatic wounds. The USDA's Animal and Plant Health Inspection Service is currently executing a mitigation strategy centered on the deployment of sterile male flies to disrupt the reproductive cycle of the parasite. To augment this capacity, the USDA intends to expand sterile fly production and establish a dedicated manufacturing facility within Texas.

其他區域參與者採取了加強監控的姿態。阿肯色州與新墨西哥州發布指引，促請畜牧生產者與旅行者監控並報告有症狀的傷口。美國農業部的動植物健康檢查局目前正執行一項緩解策略，核心在於投放不育雄飛以干擾該寄生蟲的繁殖週期。為了增強此能力，美國農業部計畫擴大不育飛的生產，並在德克薩斯州建立一座專門的製造設施。

The USDA and multiple state governments are currently employing a combination of movement restrictions and biological control methods to contain the New World Screwworm.

美國農業部與多個州政府目前正採取移動限制與生物控制方法的結合，以圍堵新世界螺旋蛆蟲。