trends in fluoroquinolone (ciprofloxacin) resistance in enterobacteriaceae from bacteremias, england and wales, 1990-1999.the public health laboratory service receives antibiotic susceptibility data for bacteria from bloodstream infections from most hospitals in england and wales. these data were used to ascertain resistance trends to ciprofloxacin from 1990 through 1999 for the most prevalent gram-negative agents: escherichia coli, klebsiella spp., enterobacter spp., and proteus mirabilis. significant increases in resistance were observed for all four species groups. for e. coli, ciprofloxacin resistance rose from ...200211996681
blockage of urethral catheters by bacterial biofilms.we report the case of a 63-year-old woman whose indwelling urethral catheter became blocked regularly at 4-5 day intervals over a period of 10 weeks. 'worm-like' structures 25-30 cm in length were found either in the catheter, completely occluding the lumen, or in the drainage tube thereby blocking the valve of the drainage bag. electron microscopy showed that these structures were composed of bacteria, while culture revealed them to be mixed communities of pseudomonas aeruginosa, escherichia co ...19938228293
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