[Characteristics of bacteriophages used in the detection of disturbances in the synthesis of the O-antigen polysaccharide of Shigella flexneri].

A study was made of the sensitivity spectra of various strains of Sh. flexneri and R-mutants of various chemotypes to bacteriophages used for lysotyping of shigellae and to some bacteriophages specific of the R-mutants of salmonellae and E. coli. As a result of study there was selected and characterized a collection of bacteriophages specific of the S-strains and R-mutants of shigellae of different chemotypes, which could be used in genetic and immunochemical investigations.