Bifidobacteria and Microflora
Online ISSN : 1884-5126
Print ISSN : 0286-9306
ISSN-L : 0286-9306
Interaction of Shigella with Bifidobacteria
Noboru OKAMURRintaro NAKAYAHajime YOKOTANobuya YANAITakuji KAWASHIMA
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1986 年 5 巻 1 号 p. 51-55

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We examined the effects of normal components of intestinal microflora on Shigella infection, using tissue culture infection assay. A Bifidobacterium infantis strain, both viable cells and culture supernatant, interfered strongly with the invasion and/or intracellular multiplication of Shigella organisms. Viable cells of Escherichia coli, Streptococcus faecalis, and Bifidobacterium breve also reduced, to a lesser degree, the percentage of infected HeLa or Henle 407 cells by Shigella, but those of Bacteroides fragilis had no inhibitory effect.

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