[Phagotypes of the Salmonella paratyphi B strains isolated in Czechoslovakia 1986-1991].

The author presents an account of phagotypes of 70 strains of Salmonella paratyphi B isolated in 1986-1991 incl., from patients suffering from typhus B and registered carriers, isolates from river water and also from three new cases of carriers in Czechoslovakia. These isolated strains were sent for typing of Salmonellae to a Bratislava department for phagotyping. According to lytic findings with standard bacteriophages the strains were classified into 8 types. Another group is formed by strains which cannot be typed in the critical dilution (RTD) nor in its tenfold concentration (19.1%). During the investigation period the subtype 3aI (38.3%) and the phage type Taunton (21.9%) were most frequent.