DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA
A total number of 259 gram negative bacteria (entero-bacteria) isolated during the years 1973-1974 was examined. These strains were isolated from sick children referred and or hospitalized in a children hospital in Tehran. The strains consisted of ; 131E.coli, 52 Salmonella, 40 Klebsiella, 18 Shigel...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Tehran University of Medical Sciences
1981-12-01
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| Series: | Iranian Journal of Public Health |
| Subjects: | |
| Online Access: | https://ijph.tums.ac.ir/index.php/ijph/article/view/2816 |
| _version_ | 1818947662106329088 |
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| author | Sh.Hakimi M.Sigaroodi M.Mohammadi B.Ghorayshi S.Mahajer |
| author_facet | Sh.Hakimi M.Sigaroodi M.Mohammadi B.Ghorayshi S.Mahajer |
| author_sort | Sh.Hakimi |
| collection | DOAJ |
| description | A total number of 259 gram negative bacteria (entero-bacteria) isolated during the years 1973-1974 was examined. These strains were isolated from sick children referred and or hospitalized in a children hospital in Tehran. The strains consisted of ; 131E.coli, 52 Salmonella, 40 Klebsiella, 18 Shigella, 13 Proteus, 3 Enterobacter and 2 Citrobacter. Sensitivity tests were performed according to the method of Kerby and Bauer. It was shown that 59% of these bacteria were drug resistant with the majority of the strains carrying resistances to two or more drugs (multiple resistances). Drug resistance was found in 78.9% of Salmonelleae, 77.7% of Shigelleae, 55.5% of Escherichieae, 52.5% of Klebsielleae and 61.5% of Proteae. Further studies have shown that the majority of these resistances were mediated by R-factor. None of the S.typhi strains so far tested was found to be resistant to any of the antimicrobial drugs used in this study. |
| first_indexed | 2024-12-20T08:34:28Z |
| format | Article |
| id | doaj.art-b0ce0ddc5d2c4b02a8b8760ecfd049d6 |
| institution | Directory Open Access Journal |
| issn | 2251-6085 2251-6093 |
| language | English |
| last_indexed | 2024-12-20T08:34:28Z |
| publishDate | 1981-12-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Iranian Journal of Public Health |
| spelling | doaj.art-b0ce0ddc5d2c4b02a8b8760ecfd049d62022-12-21T19:46:36ZengTehran University of Medical SciencesIranian Journal of Public Health2251-60852251-60931981-12-01101-42805DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA Sh.Hakimi0 M.Sigaroodi1 M.Mohammadi2 B.Ghorayshi3 S.Mahajer4 A total number of 259 gram negative bacteria (entero-bacteria) isolated during the years 1973-1974 was examined. These strains were isolated from sick children referred and or hospitalized in a children hospital in Tehran. The strains consisted of ; 131E.coli, 52 Salmonella, 40 Klebsiella, 18 Shigella, 13 Proteus, 3 Enterobacter and 2 Citrobacter. Sensitivity tests were performed according to the method of Kerby and Bauer. It was shown that 59% of these bacteria were drug resistant with the majority of the strains carrying resistances to two or more drugs (multiple resistances). Drug resistance was found in 78.9% of Salmonelleae, 77.7% of Shigelleae, 55.5% of Escherichieae, 52.5% of Klebsielleae and 61.5% of Proteae. Further studies have shown that the majority of these resistances were mediated by R-factor. None of the S.typhi strains so far tested was found to be resistant to any of the antimicrobial drugs used in this study.https://ijph.tums.ac.ir/index.php/ijph/article/view/2816Entero bacteriaGram negative bacteria |
| spellingShingle | Sh.Hakimi M.Sigaroodi M.Mohammadi B.Ghorayshi S.Mahajer DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA Iranian Journal of Public Health Entero bacteria Gram negative bacteria |
| title | DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA |
| title_full | DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA |
| title_fullStr | DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA |
| title_full_unstemmed | DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA |
| title_short | DISTRIBUTION OF R-FACTORS IN GRAM NEGATIVE BACTERIA |
| title_sort | distribution of r factors in gram negative bacteria |
| topic | Entero bacteria Gram negative bacteria |
| url | https://ijph.tums.ac.ir/index.php/ijph/article/view/2816 |
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