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用于分析从比利时食品和李斯特菌病患者中分离出的单核细胞增生李斯特菌群体的血清分型和酯酶分型。

Serotyping and esterase typing for analysis of Listeria monocytogenes populations recovered from foodstuffs and from human patients with listeriosis in Belgium.

作者信息

Gilot P, Genicot A, André P

机构信息

Belgian National Reference Centre for Listeriosis, Department of Microbiology, Institute of Hygiene and Epidemiology, Brussels, Belgium.

出版信息

J Clin Microbiol. 1996 Apr;34(4):1007-10. doi: 10.1128/jcm.34.4.1007-1010.1996.

Abstract

Listeria monocytogenes strains isolated in Belgium from different foodstuffs and in sporadic cases of human listeriosis were analyzed. The distribution of serovars differed in each of these populations. The bacteria isolated from cheeses and from human patients with listeriosis were further studied by esterase typing. The twenty esterase patterns defined were not equally distributed in these two populations. The secretion of the virulence determinant phosphatidylinositol-specific phospholipase C and the pathogenicity level of strains in immunocompromised mice could not explain the unequal distribution of esterase types. The discrimination index of esterase typing (DI = 0.868) was compared with that of serotyping (DI = 0.666) and with that of the two combined methods (DI = 0.899).

摘要

对比利时从不同食品中分离出的单核细胞增生李斯特菌菌株以及散发性人类李斯特菌病病例进行了分析。这些群体中血清型的分布各不相同。对从奶酪和患李斯特菌病的人类患者中分离出的细菌进一步进行酯酶分型研究。所确定的20种酯酶模式在这两个群体中的分布并不均匀。毒力决定因素磷脂酰肌醇特异性磷脂酶C的分泌以及菌株在免疫受损小鼠中的致病水平无法解释酯酶类型的不均匀分布。将酯酶分型的鉴别指数(DI = 0.868)与血清分型的鉴别指数(DI = 0.666)以及两种方法联合使用的鉴别指数(DI = 0.899)进行了比较。

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