| molecular studies of plasmids of multiply-resistant shigella spp. in hong kong. | one hundred and two shigella spp. isolated in two hospitals in hong kong were analysed for antibiotic resistances, resistance plasmids and plasmid profiles. three quarters of the isolates were s. flexneri. all isolates harboured plasmids, up to a maximum of ten within one strain. plasmids of 220 kb encoding resistances to tetracycline, chloramphenicol and sulphonamide and probably also associated with invasiveness in the sereny test were found in 80 strains and were transferable in 18% of cases. ... | 1993 | 8519309 |