2022年5月，山東省威海市某農場飼和亮養的地方品種(zhǒng)雞突發(fā)不明原因大量死亡。爲了解訊師疫病情況，查明病因，采取針對(duì)性防控師愛措施，對(duì)該場點進(jìn)行了地金緊急流行病學(xué)調查。根據病雞臨床症狀、流行病學(xu費為é)調查信息及實驗室檢測結果，确診該會會起(qǐ)疫情爲雞球蟲感染。通過(guò)使用複方磺胺氯哒嗪鈉配工爸合維生素C進(jìn)行治療，并對(duì)養殖環境進(jìn)行全面短的(miàn)消毒，疫情迅速得到控制。睡現調查認爲，引進(jìn)未經(jīng)檢疫的動物導緻病歌理原傳入是此次疫病發(fā)生的主要原因。建議農場引進(jìn)動物時(shí)算工加強檢疫和隔離飼養，定期進(j林中ìn)行驅蟲，及時(shí)清潔圈舍票喝和清理糞便，以預防雞球蟲病再次發(fā)生。

An Outbreak Investigatio城得n on Chicken Coccidiosis 好相in a Farm

In May 2022，a large nu時店mber of local chicken影可s suddenly died of unknown causes in器數 a farm in Weihai City，Shandong Provi技理nce. In order to investigate the ep要光idemic situation，find out all錢我 possible causes and then con弟冷trol the outbreak，an 習子emergency epidemiolog場東ical investigation was ca著城rried out in the farm. Th議窗e outbreak was 但些confirmed as an infection with chicken司電 coccidiosis according to the cl村樂inical symptoms，epid醫女emiological investigation informatio大話n and laboratory test results.市女 The outbreak was r信數apidly controlled through admini著一stration with compound sulfadoxine-c暗雪hloropyridazine sodium together w朋少ith vitamin C and thorou那林gh disinfection for the breedin飛我g environment. It was investi姐用gated that the outbreak 弟場was mainly caused by the pathogens intr制員oduced along with imported ch上紙ickens without qua費會rantine. Therefore，the farm習場 was recommended to strengthe她都n quarantine and雜睡 isolation breeding when introdu車內cing chickens，regula多靜rly deworm chickens and promptly clea習員n chicken coops and feces 鐘話to prevent any possible風他 re-occurrence of chicke紅子n coccidiosis.

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