| characterization of strains of salmonella enterica subsp. enterica serovar wien isolated in italy: an epidemiological evaluation. | in the years 1987-1988, 110 strains of wien serovar were isolated from a gastroenteritis outbreak in a neonatal unit in palermo (sicily). these strains showed different drug resistance patterns and plasmid profiles. analysis of endonuclease restriction fragments of chromosomal dna by hybridization with e. coli rrna has demonstrated that a single bacterial clone or its derivatives were responsible for the outbreak. furthermore, the study of 139 strains, isolated since 1970 from different geograph ... | 1990 | 1982334 |
| [resistance to antibiotics and resistance factors in salmonella wien strains isolated in sicily]. | the majority of the strains of s. wien isolated in sicily were resistant to six different antibiotics, showing the same resistance pattern (askctsu) observed in strains isolated in other provinces of italy. after conjugation with e. coli k12, the transfer of the whole pattern or of various groups of resistances was observed, which suggests the presence of several co-existent r plasmids. the results obtained suggest that the various outbreaks occurred in italy have the same origin. they can be co ... | 1976 | 1016572 |