Production of Cytolethal Distending Toxins by Pathogenic <i>Escherichia coli</i> Strains Isolated from Human and Animal Sources: Establishment of the Existence of a New <i>cdt</i> Variant (Type IV)

Abstract excerpt

Three types of cytolethal distending toxin (CDT), namely, CDT-I, CDT-II, and CDT-III, have been described in Escherichia coli. Using primers designed for the detection of sequences common to the cdtB genes, we analyzed by PCR a set of 21 CDT-producing E. coli strains of intestinal and extraintestinal origins isolated from human and different animal species in several European countries and in the United States....

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