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 |
| Summary: | 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. |
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| ISSN: | 2251-6085 2251-6093 |