2022年2月，陝西省延長(cháng說樹)縣一養殖戶飼養的21隻豬先後(hòu)發(fā)生不明原因死亡，經(jī學河ng)陝西省動物疫病預防控制中心及市縣實驗室聯舊線合診斷，證實此次疫情是由炭疽杆菌引起(qǐ)的豬炭疽病。黑街爲查明病菌來源，摸清感染路徑，按照重大動物疫病流從理行病學(xué)調查相關流程，省、市、縣相關部門組開吧建專項工作組赴現場開(kāi)展流行病學(xué)調查，民事分析疫情來源和傳播途徑，估測疫情擴散風器亮險，指導開(kāi)展疫情處置工作。綜合流外煙行病學(xué)特征及臨床症狀、實驗室鏡檢結果，推測本次疫情很可能(né男們ng)是曆史疫源地炭疽杆菌意外暴露，通過體內(guò)人員、草料、交通工具傳播引起(q事醫ǐ)的。本次疫情警示，對(duì)于曆史疫源地要控制土壤的随意開(kā數低i)挖，做好(hǎo)範圍内養殖場的生物安全管理，加強包括豬、牛、羊在内所有炭謝校疽易感家畜的炭疽防控。
Emergency Epidemiologic廠坐al Investigation on the Outbreak of Sw西弟ine Anthrax in Yanchan服服g County of Shaanxi Province
In February 2022，21 pig自做s successively died of unknown causes公舊 in a household in Yanchang Country o冷南f Shaanxi Province火視，which was confirmed to b新雨e an outbreak of anthrax as j頻冷oint diagnosed by Shaa友亮nxi Center for Animal D煙謝isease Prevention空舞 and Control together w窗吧ith laboratories at湖如 city/county level. In order to 議我find out the sources of我著 the pathogen and identify all i白森nfection routes，a special workin著他g team was organized by relevant author秒兒ities at the provincial，municipal an匠錢d county levels according to rel民機evant procedures子懂 of epidemiological investigation o公雪n major animal diseases 裡街to analyze any possible sou廠北rces and routes，evaluate the risk of s好知preading，and guide the disposal of t現笑he outbreak. It was speculat老議ed that，based on th開有e epidemiological characteristics，cl醫員inical symptoms and labor你玩atory microscopic examinatio能線n results，the outbreak was likel近友y to be caused by accide慢能ntal exposure of anthrax bacteria in 討日the historical infected zones the小雨n spreading via personn資光el，forage and vehicles. It was the做朋refore recommended th些錯at random excavation of soil的山 should be controlled in the hist車近orical infected 白友zones where biosafety ma唱南nagement should be well done in al務有l farms，and the anthrax prevention and農技 control of all susceptible lives靜跳tock including pigs，cattle and sh去請eep should be s綠友trengthened.
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