| plasmid typing of shigella sonnei epidemic strains and molecular relationship of their r-plasmids. | we conducted a surveillance program on epidemic and/or endemic shigella strains in asturias (spain), their frequency and dispersion in our community, and their r-plasmids. we analyzed initial isolates of shigella sonnei from two epidemic outbreaks using antibiotic resistance patterns and plasmid profile analysis as epidemiological markers. we found that the 2 outbreaks were caused by different s. sonnei strains, which respectively carried one and two r-plasmids together with other plasmids. the ... | 1988 | 2841150 |
| usefulness of ribotyping in a molecular epidemiology study of shigellosis. | ribotyping performed with six restriction endonucleases was used to study the molecular epidemiology of shigellosis in asturias, spain. the series included shigella sonnei from 34 sporadic cases, 3 outbreaks and 3 reference strains, and s. flexneri from sporadic cases and 1 reference strain. the s. sonnei strains were grouped into 5 ribotypes with sal i, 4 with hind iii and pvu ii, 3 with bgl ii and ecor i and 2 with hinc ii (discriminatory index (di) between 0.54 and 0.14); the s. flexneri into ... | 1996 | 8620903 |