PLASMID ANALYSIS OF INOSITOL AND RHAMNOSA NEGATIVE STRAINS OF SALMONELLA-TYPHIMURIUM

S. typhimurium isolates obtained during a large outbreak of human salm onellosis associated with smoked mackerels in the Czech Republic as we ll as strains of S. typhimurium isolated from black headed gull (Larus ridibundus) were examined following biotyping, phage typing, plasmid profiling and restriction endonuclease analysis (Eco RI, Hind III and Bam HI) of plasmid DNA. The epidemic strain of S. typhimurium and two isolates from environment of nesting colony black-headed gull were mes o-inositol and L-rhamnose negative, phage type 141. The isolates from human and environment of nesting colony were found to share the same p lasmid profile and REA.