Task: Answer Verification
Input (English): Question: Are bacteriocin-encoding genes and ExPEC virulence determinants associated in human fecal Escherichia coli strains?
Answer: The occurrence of bacteriocin-encoding genes and ExPEC virulence determinants correlate positively in E. coli strains of human fecal origin. Bacteriocin synthesis appears to modulate the ability of E. coli strains to reside in the human intestine and/or the virulence of the corresponding strains.
Output (English): yes