对加拿大西部商业养蜂场 3 次欧洲幼虫腐臭病暴发中分离株的调查。
Investigation of isolates from 3 outbreaks of European foulbrood disease in commercial beekeeping operations in western Canada.
机构信息
Department of Veterinary Pathology (Thebeau, Liebe, Kozii, Klein, Zabrodski, Moshynskyy, Sobchishin, Simko, Wood), and Department of Veterinary Microbiology (Masood), Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4; Ministry of Agriculture, Government of Saskatchewan, 141-800 Central Drive, Prince Albert, Saskatchewan S6V 6Z2 (Wilson); Agriculture and Agri-Food Canada, Beaverlodge, Alberta, T0H 0C0 (Guarna); British Columbia Blueberry Council, Abbotsford, British Columbia V2T 1W5 (Gerbrandt).
出版信息
Can Vet J. 2022 Sep;63(9):935-942.
European foulbrood (EFB) disease is an economically important bacterial disease of honey bee larvae caused by enteric infection with . In this study, we investigated 3 clinical outbreaks of EFB disease in commercial beekeeping operations in western Canada in the summer of 2020 and characterized the isolates cultured from these outbreaks according to genetic multi-locus sequence type and larval pathogenicity. We isolated sequence type 19 from EFB outbreaks in British Columbia and Alberta, and a novel sequence type 36 from an EFB outbreak in Saskatchewan. larval infection with each isolate was associated with decreased larval survival by 58.3 to 70.8% ( < 0.001) compared to non-infected controls. Further elucidation of mechanisms of virulence of , paired with epidemiologic investigation, is imperative to improve EFB management strategies and mitigate risks of EFB outbreaks in western Canada.
欧洲幼虫腐臭病（EFB）是一种由蜜蜂幼虫肠道感染 引起的、对蜜蜂养殖业具有重要经济影响的细菌性疾病。在本研究中，我们调查了 2020 年夏季加拿大西部商业养蜂场的 3 起 EFB 临床暴发，并根据遗传多位点序列分型和幼虫致病性对从这些暴发中培养出的 分离株进行了特征描述。我们从不列颠哥伦比亚省和艾伯塔省的 EFB 暴发中分离到了序列类型 19，从萨斯喀彻温省的 EFB 暴发中分离到了一种新型的序列类型 36。与未感染对照相比，每个 分离株的幼虫感染导致幼虫存活率降低 58.3%至 70.8%（<0.001）。进一步阐明 的毒力机制，并结合流行病学调查，对于改进 EFB 管理策略和减轻加拿大西部 EFB 暴发的风险至关重要。
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