Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway
Escherichia coli 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 th...
Published in: | Antimicrobial Agents and Chemotherapy |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Society for Microbiology
1985
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1128/aac.27.1.107 https://journals.asm.org/doi/pdf/10.1128/AAC.27.1.107 |
id |
crasmicro:10.1128/aac.27.1.107 |
---|---|
record_format |
openpolar |
spelling |
crasmicro:10.1128/aac.27.1.107 2024-06-23T07:55:33+00:00 Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway Vorland, L H Carlson, K Aalen, O 1985 http://dx.doi.org/10.1128/aac.27.1.107 https://journals.asm.org/doi/pdf/10.1128/AAC.27.1.107 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Antimicrobial Agents and Chemotherapy volume 27, issue 1, page 107-113 ISSN 0066-4804 1098-6596 journal-article 1985 crasmicro https://doi.org/10.1128/aac.27.1.107 2024-06-10T04:07:32Z Escherichia coli 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 E. coli strains, 42% were resistant to one or more antibiotics. Resistance was highest to sulfonamide (20.8% of all strains), nitrofurantoin (14.5%), and tetracycline (10.1%), whereas less than 6% of the strains were resistant to ampicillin, carbenicillin, cephalothin, nalidixic acid, or trimethoprim-sulfamethoxazole. No strain was resistant to gentamicin. Tetracycline resistance was more common in men than in women. Resistance to cephalothin, nalidixic acid, and sulfonamide was higher in strains from older people. Resistance to sulfonamide was more frequent in the urban community. These was no seasonal variation in antibiotic resistance, although the incidence of urinary tract infection varied with seasons. Plasmid-determined resistance to ampicillin, streptomycin, sulfonamide, and tetracycline was found. About 18% of the resistant strains from the urban municipality carried R plasmids, most of which were small plasmids mediating resistance to sulfonamide and streptomycin. 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. Article in Journal/Newspaper Northern Norway ASM Journals (American Society for Microbiology) Norway Antimicrobial Agents and Chemotherapy 27 1 107 113 |
institution |
Open Polar |
collection |
ASM Journals (American Society for Microbiology) |
op_collection_id |
crasmicro |
language |
English |
description |
Escherichia coli 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 E. coli strains, 42% were resistant to one or more antibiotics. Resistance was highest to sulfonamide (20.8% of all strains), nitrofurantoin (14.5%), and tetracycline (10.1%), whereas less than 6% of the strains were resistant to ampicillin, carbenicillin, cephalothin, nalidixic acid, or trimethoprim-sulfamethoxazole. No strain was resistant to gentamicin. Tetracycline resistance was more common in men than in women. Resistance to cephalothin, nalidixic acid, and sulfonamide was higher in strains from older people. Resistance to sulfonamide was more frequent in the urban community. These was no seasonal variation in antibiotic resistance, although the incidence of urinary tract infection varied with seasons. Plasmid-determined resistance to ampicillin, streptomycin, sulfonamide, and tetracycline was found. About 18% of the resistant strains from the urban municipality carried R plasmids, most of which were small plasmids mediating resistance to sulfonamide and streptomycin. 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. |
format |
Article in Journal/Newspaper |
author |
Vorland, L H Carlson, K Aalen, O |
spellingShingle |
Vorland, L H Carlson, K Aalen, O Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway |
author_facet |
Vorland, L H Carlson, K Aalen, O |
author_sort |
Vorland, L H |
title |
Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway |
title_short |
Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway |
title_full |
Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway |
title_fullStr |
Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway |
title_full_unstemmed |
Antibiotic resistance and small R plasmids among Escherichia coli isolates from outpatient urinary tract infections in northern Norway |
title_sort |
antibiotic resistance and small r plasmids among escherichia coli isolates from outpatient urinary tract infections in northern norway |
publisher |
American Society for Microbiology |
publishDate |
1985 |
url |
http://dx.doi.org/10.1128/aac.27.1.107 https://journals.asm.org/doi/pdf/10.1128/AAC.27.1.107 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
Antimicrobial Agents and Chemotherapy volume 27, issue 1, page 107-113 ISSN 0066-4804 1098-6596 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aac.27.1.107 |
container_title |
Antimicrobial Agents and Chemotherapy |
container_volume |
27 |
container_issue |
1 |
container_start_page |
107 |
op_container_end_page |
113 |
_version_ |
1802648188647112704 |