Coating Urinary Catheters with an Avirulent Strain ofEscherichia colias a Means to Establish Asymptomatic Colonization

Abstract

We investigated whether insertion of urinary catheters that had been coated withEscherichia coliHU2117 could establish bladder colonization with this nonvirulent organism. Ten of 12 subjects were successfully colonized for 14 days or more. The rate of symptomatic UTI during colonization was 0.15 per 100 patient-days.