Occurrence and prevalence of Clostridium perfringens in polar bears from Svalbard, Norway
Occurrence and prevalence of Clostridium perfringens in polar bears from Svalbard, Norway
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DOI：
10.7589/0090-3558-44.1.155
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发表时间：
2008-01-01
影响因子：
1.3
通讯作者：
Aschfalk, Ansgar
中科院分区：
文献类型：
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作者：
Jores, Joerg;Derocher, Andrew E.;Aschfalk, Ansgar
为了深入了解产气荚膜梭菌及其主要毒素在北极熊(Ursus Maritimus)中的发生和流行情况，我们于2001年在挪威斯瓦尔巴特群岛采集了活体捕获的熊的粪便样本进行细菌学分析。92份标本中检出产气荚膜梭菌40份(44%)。进一步对30株菌株进行毒素类型鉴定，鉴定为A型，其中1株β2-毒素基因阳性。尽管A型产气荚膜梭菌与多种动物和人类的致命性疾病有关，但我们的数据表明，A型产气荚膜梭菌是北极熊胃肠道的正常居民。
To obtain insight into the occurrence and prevalence of Clostridium perfringens and its major toxins in polar bears (Ursus maritimus), we took fecal samples for bacteriologic analysis from live-captured bears in the Svalbard Archipelago, Norway, in 2001. Clostridium perfringens was isolated from 40 of 92 samples (44%). Thirty strains were further characterized by determining toxin type and were classified to be type A, while one was also positive for the gene encoding beta 2-toxin. Despite the fact that C. perfringens type A has been associated with fatal diseases in several animal species as well as in humans, our data indicate that C. perfringens type A is an normal inhabitant of the gastrointestinal tract of polar bears.