The US government found a bad worm in a cow in South Texas. This is the first time in many years.

美國政府在南德州的一隻牛身上發現了有害寄生蟲。這是多年來首次發生。

A small calf had the worm in a wound. The worm came from Mexico. Many animals in Mexico have this worm now.

一隻小牛的傷口中發現了這種蟲。這種蟲來自墨西哥。目前墨西哥許多動物都感染了這種蟲。

Experts want to stop the worm. They drop special flies from planes. These flies cannot have babies. This stops the bad worms from growing.

專家希望阻止這種蟲的擴散。他們利用飛機投放特殊的蒼蠅。這些蒼蠅無法繁衍後代，藉此阻止有害寄生蟲的生長。

Now, animals cannot move in a big area near the calf. The government is building a big factory to make more special flies. Some leaders in Texas want to use poison to kill the worms too.

現在，該小牛附近的一個大範圍區域禁止動物移動。政府正在興建一座大型工廠以製造更多特殊的蒼蠅。德州部分領導人也希望使用藥劑來殺死這些蟲。

The government is working hard to stop the worm. They want to keep other animals safe.

政府正努力阻止這種蟲的擴散，希望確保其他動物的安全。

The United States Department of Agriculture (USDA) has confirmed that a cow in South Texas is infected with the New World screwworm. This is the first time this parasite has been found in the state since 1966.

美國農業部（USDA）已確認南德州有一頭牛感染了新世界螺旋蛆。這是自 1966 年以來，該州首次發現這種寄生蟲。

The infection was discovered in a three-week-old calf in Zavala County, specifically in a wound near the belly button. This event happened after the parasite moved north through Central America and Mexico, where the USDA reports more than 26,000 cases. Recently, the parasite was found in Coahuila, Mexico, very close to the U.S. border, which shows that previous efforts to stop the insect have failed. In the 1960s and 70s, the U.S. removed the parasite using the Sterile Insect Technique (SIT), which involves releasing sterile male flies into the air to stop the wild population from breeding.

這次感染是在扎瓦拉縣一隻三週大的小牛身上發現的，具體位於肚臍附近的傷口。此次事件發生在該寄生蟲透過中美洲和墨西哥向北遷移之後，美國農業部報告該地區有超過 26,000 宗病例。最近，在墨西哥科阿韋拉州、非常靠近美國邊境的地方發現了該寄生蟲，這顯示先前阻止該昆蟲的努力已失敗。在 1960 和 70 年代，美國使用「昆蟲不育技術」（SIT）根除了該寄生蟲，該技術涉及將不育的雄飛釋放到空中，以阻止野外種群繁殖。

To handle this situation, the USDA and the Texas Animal Health Commission have formed a joint command team. They have created a quarantine zone with a 20-kilometer radius, meaning warm-blooded animals cannot be moved out of the area to prevent the parasite from spreading. Consequently, the USDA is releasing sterile flies from the ground and the air. Furthermore, the government is spending $750 million on a new production facility in South Texas. However, Texas Agriculture Commissioner Sid Miller has criticized this plan. He emphasized that the USDA should also use the Screwworm Adult Suppression System (Swass), which uses chemicals to kill adult flies before releasing the sterile ones.

為了處理此情況，美國農業部與德州動物健康委員會組成了一個聯合指揮小組。他們創建了一個半徑 20 公里的隔離區，意味著溫血動物不得移出該區域，以防止寄生蟲傳播。因此，美國農業部正從地面和空中釋放不育飛。此外，政府正斥資 7.5 億美元在南德州建立一個新的生產設施。然而，德州農業委員 Sid Miller 批評了這項計劃。他強調美國農業部還應使用「螺旋蛆成蟲抑制系統」（Swass），該系統在釋放不育飛之前使用化學物質殺死成蟲。

Current efforts are focused on containing this single case through a strict quarantine and the increased release of sterile insects to prevent a larger outbreak.

目前的重點在於透過嚴格的隔離和增加釋放不育昆蟲來控制此單一病例，以防止更大規模的爆發。

The United States Department of Agriculture (USDA) has confirmed the detection of a New World screwworm infection in a bovine in South Texas, marking the first such instance in the state since 1966.

美國農業部 (USDA) 已確認在南德州的一頭牛隻身上檢測到新世界螺旋蠅感染，這是該州自 1966 年以來首次出現此類病例。

The infection was identified in a three-week-old calf in Zavala County, specifically within an umbilical wound. This event follows a documented northward migration of the parasite through Central America and Mexico, where the USDA reports over 26,000 identified cases. Recent detections in Coahuila, Mexico, occurred within 25 to 39 miles of the United States border, signaling a breach of previous biological containment efforts. Historically, the parasite was eradicated from the U.S. in the 1960s and 1970s, a feat attributed to the Sterile Insect Technique (SIT). This methodology involves the aerial dispersal of sterile male flies to inhibit successful reproduction among the wild population.

該感染病例是在扎瓦拉郡一隻三週大的小牛身上發現，具體位於臍帶傷口處。此次事件隨後記錄到該寄生蟲經由中美洲與墨西哥向北遷移，美國農業部報告指出已有超過 26,000 個已知病例。近期在墨西哥科阿韋拉州檢測到的病例距離美國邊境僅 25 至 39 英里，顯示先前的生物圍堵努力已遭突破。從歷史上看，該寄生蟲在 1960 與 1970 年代於美國被根除，此成就歸功於「不育昆蟲技術」(SIT)。此方法涉及空中散佈不育雄飛，以抑制野生族群的成功繁殖。

Institutional responses to this incursion involve the establishment of a unified Incident Command Team comprising the USDA and the Texas Animal Health Commission. A quarantine zone with a 20-kilometer radius has been implemented, restricting the movement of all warm-blooded animals to prevent further dissemination. To mitigate the risk of establishment, the USDA is deploying a combination of ground-release chambers and aerial dispersal of sterile flies. Furthermore, the administration is investing in infrastructure, including a $750 million production facility in South Texas and the conversion of a facility in Mexico. Despite these measures, Texas Agriculture Commissioner Sid Miller has critiqued the USDA's strategy, advocating for the integration of the Screwworm Adult Suppression System (Swass), which utilizes attractants and insecticides to reduce adult populations prior to SIT application.

機構對此次入侵的反應包括建立一個由美國農業部與德州動物健康委員會組成的統一事故指揮小組。目前已實施一個半徑 20 公里的隔離區，限制所有溫血動物的移動以防止進一步傳播。為了降低定殖風險，美國農業部正部署地面釋放裝置與空中散佈不育飛的組合方案。此外，行政部門正投資基礎設施，包括在南德州興建一座 7.5 億美元的生產設施，以及對墨西哥的一座設施進行轉型。儘管採取了這些措施，德州農業專員 Sid Miller 批評了美國農業部的策略，主張應整合「螺旋蠅成蟲抑制系統」(Swass)，在應用 SIT 之前利用誘餌與殺蟲劑來減少成蟲數量。

Current efforts are focused on the containment of the single confirmed case through strict quarantine and the intensified release of sterile insects to prevent a mass infestation.

目前的努力集中於透過嚴格隔離與加強釋放不育昆蟲來圍堵單一確認病例，以防止大規模爆發。