Antibiotic resistance and small R plasmids among XXXX isolates from outpatient urinary tract infections in northern Norway.

@entity1 @entity801 @entity6616 @entity799 @entity11682 @entity7911 @entity5821 @entity3639 @entity802 @entity869 @entity803 @entity293 @entity526
@entity526 strains from outpatient urinary tract infections in northern Norway over a period of 1 year were examined for resistance to nine commonly used antibiotics. Strains collected during 4.5 months were examined for R plasmid content by using conjugation and in vitro transformation. Of the @entity526 strains, 42% were resistant to one or more antibiotics. Resistance was highest to @entity11682 (20.8% of all strains), @entity6616 (14.5%), and @entity803 (10.1%), whereas less than 6% of the strains were resistant to @entity869 , @entity7911 , @entity5821 , @entity802 , or @entity799 . No strain was resistant to @entity801 . @entity803 resistance was more common in @entity1 than in @entity1 . Resistance to @entity5821 , @entity802 , and @entity11682 was higher in strains from older @entity1 . Resistance to @entity11682 was more frequent in the urban community. These was no seasonal variation in antibiotic resistance, although the incidence of @entity293 varied with seasons. Plasmid-determined resistance to @entity869 , @entity3639 , @entity11682 , and @entity803 was found. About 18% of the resistant strains from the urban municipality carried R plasmids, most of which were small plasmids mediating resistance to @entity11682 and @entity3639 . The overall frequency of resistance in strains collected from rural areas was similar to the urban frequency, but in the rural strains, R plasmids were found in only 5% of the resistant strains.
