[Typing of Shigella sonnei in the GDR during epidemiological surveillance].

A total of 35,503 strains of Sh. sonnei were typed during the period from 1962 to 1974 at the Institute of Experimental Epidemiology. The principal method used was bacteriophage typing, and biochemical typing and determination of colicine formation served as auxiliary methods. Colicine type, resistogram and in some cases R-factor were determined in some of the strains. Such complex typing of Sh. sonnei is of value in epidemiological practice.