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Science 11 August 2006:
Vol. 313. no. 5788, pp. 772 - 773
DOI: 10.1126/science.1131752
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Perspectives

MICROBIOLOGY:
Breaking the Barrier Between Commensalism and Pathogenicity

Tetsuya Hayashi

Harmless bacteria in the intestinal tract secrete a peptide that may enhance their survival. The same peptide causes disease when secreted by pathogenic bacteria outside the intestine.

The author is in the Division of Bioenvironmental Science, Frontier Science Research Center, University of Miyazaki, 5200 Kiyotake, Miyazaki 889-1692, Japan. E-mail: thayash{at}med.miyazaki-u.ac.jp

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Extraintestinal Virulence Is a Coincidental By-Product of Commensalism in B2 Phylogenetic Group Escherichia coli Strains.
T. Le Gall, O. Clermont, S. Gouriou, B. Picard, X. Nassif, E. Denamur, and O. Tenaillon (2007)
Mol. Biol. Evol. 24, 2373-2384
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