亚利桑那州科奇斯县皮尔斯镇：第六例新大陆螺旋蝇确诊 三县疫区范围扩大
亚利桑那州农业厅11月11日通报，该州确诊第六例新大陆螺旋蝇病例，一匹位于科奇斯县皮尔斯镇的马匹伤口发现食肉蝇蛆，该地点距约两周前报告的首例病例仅5英里。截至目前，已有两匹马、两只狗和一只羊的伤口被螺旋蝇幼虫感染，州农业厅随之宣布在科奇斯县、格林利县和格雷厄姆县设立三个疫区应对，并在11月10日最新病例确认后扩大了科奇斯县的疫区范围。在疫区内，未经州兽医批准，任何动物不得移出病例报告点半径12.4英里的范围，直至限制解除。亚利桑那州首例病例于10月28日确诊，美国农业部次日即派飞机在疫区空投不育蝇，本周还将在亚利桑那—索诺拉边境及上述三县附近安排更多投放，并在道格拉斯附近新建一处不育蝇接收投放点。目前全美共有64例活跃病例，墨西哥有1543例，其中边境州索诺拉52例。州农业厅厅长保罗·布里尔利表示，该州正按美国农业部的应对方案处置疫情。
Pearce, Cochise County, Arizona: Sixth New World Screwworm Case Confirmed, Quarantine Zones Expand Across Three Counties
The Arizona Department of Agriculture reported on November 11 the state's sixth confirmed case of New World screwworm: flesh-eating fly larvae were found in a wound on a horse in Pearce, in Cochise County, about five miles from the first case reported roughly two weeks earlier. So far, two horses, two dogs and one sheep have been found with screwworm larvae in wounds. The department has established response quarantine zones in Cochise, Greenlee and Graham counties, and expanded the Cochise County zone after the latest case was confirmed on November 10.
Within a quarantine zone, no animal may be moved beyond a 12.4-mile radius of the reporting point without state veterinarian approval until restrictions are lifted. Arizona's first case was confirmed on October 28; the US Department of Agriculture sent aircraft the next day to release sterile flies over the zones, and more releases are planned this week along the Arizona-Sonora border and near the three counties, along with a new sterile-fly receiving and release site near Douglas.
Nationwide there are 64 active cases, while Mexico has 1,543, including 52 in the border state of Sonora. Agriculture Director Paul Brierley said the state is handling the outbreak under the USDA response plan.
来源：亚利桑那共和报
发布：GSM·美国（发布链接）
图片来源：图：新大陆螺旋蝇（显微资料图）。图片来源：Wikimedia Commons，Judy Gallagher 摄，CC BY 2.0。 Image: The New World screwworm fly (file photo). Source: Wikimedia Commons, photo by Judy Gallagher, CC BY 2.0.
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