萨克拉门托县庭院鸡群检出高致病性禽流感 野鸟亦有新增检出
萨克拉门托讯——位于加利福尼亚州萨克拉门托县的一处庭院鸡群检出高致病性禽流感（HPAI）。加州官员10月19日确认这一新病例，同时野鸟中亦有新增检出。随着秋季候鸟迁徙季到来，卫生与农业部门要求家禽饲养者提高警惕、加强防范。
据加州食品与农业部（CDFA）今年6月致家禽业者的通报，加州此前数月未再在商业或庭院家禽群中检出 HPAI，并于4月17日达到自行宣告家禽无 HPAI 的标准，野生鸟类中也仅有极少检出。此次在萨克拉门托县庭院鸡群的检出，意味着禽流感在迁徙季重返加州家养禽群，州政府将继续监测疫情发展。
CDFA 公布的资料显示，家禽感染 HPAI 的临床征状包括突发死亡、呼吸困难、精神萎靡、采食与饮水减少、产蛋骤降，以及头部、肉垂肿胀或变色等。其公布的生物安全要点包括：使家禽与野鸟、特别是水禽隔离，防止野鸟接触家禽的饲料与饮水，进出禽舍前清洁消毒；发现家禽异常生病或死亡，可拨打 CDFA 病禽热线（866）922-2473 报告，野鸟异常死亡可向加州渔猎部（CDFW）在线报告。
官员表示，该病毒对公众的整体健康风险仍然较低，CDFA 引述美国疾病控制与预防中心（CDC）的评估亦持相同结论。鸡蛋和禽肉只要充分煮熟，即可安全食用。（GSM 据《沙漠太阳报》与加州食品与农业部资料报道）
Highly Pathogenic Avian Influenza Found in a Sacramento County Backyard Flock; New Wild-Bird Detections Reported
SACRAMENTO — A backyard flock in Sacramento County, California, has tested positive for highly pathogenic avian influenza (HPAI), state officials confirmed on October 19, with additional new detections reported in wild birds. As the fall bird-migration season gets under way, health and agriculture officials are urging poultry owners to take extra precautions.
According to a June update from the California Department of Food and Agriculture (CDFA) to poultry producers, California had gone several months without HPAI detections in commercial or backyard poultry flocks and had met the criteria to self-declare freedom from HPAI in poultry on April 17, with only minimal detections in wildlife. The Sacramento County detection marks the virus's return to California domestic flocks during migration season, and the state says monitoring will continue.
Clinical signs of HPAI in poultry published by CDFA include sudden death, trouble breathing, lethargy, decreased food and water intake, a sharp drop in egg production, and swelling or discoloration of the head and wattles. The department's published biosecurity guidance calls for keeping domestic birds separated from wild birds, especially waterfowl, preventing wild birds from accessing poultry feed and water, and cleaning and disinfecting before entering poultry areas. Unusual sick or dead poultry can be reported to the CDFA Sick Bird Hotline at (866) 922-2473, and unusual wild-bird deaths can be reported online to the California Department of Fish and Wildlife.
Officials say the overall risk to the general public remains low, an assessment CDFA attributes to the U.S. Centers for Disease Control and Prevention. Eggs and poultry are safe to eat when thoroughly cooked. (GSM, based on The Desert Sun and California Department of Food and Agriculture materials)
来源：GSM·美国（原文链接）
图片来源：庭院饲养的鸡（示意资料图，非本次疫情现场）。Tseenster 摄，CC BY-SA 4.0，经 Wikimedia Commons 发布。A backyard chicken (illustrative file photo, not the affected flock). Photo by Tseenster, CC BY-SA 4.0, via Wikimedia Commons.
- 2026-10-19 19:03萨克拉门托县庭院鸡群检出高致病性禽流感 野鸟亦有新增检出本篇
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