Based on experience gathered from individual test cultures of 2,996 specimens of the species Salmonella isolated in West Berlin during the period from 1955 to 1959, a graduated scale of risk is proposed in accordance with incidence, pathogenicity, group formation and duration of emission. Investigation has shown such graduations to be present and the latter have been brought in relation both to the clinical and the epidemiological experience gained.
Trans. from Zentralblatt fuer Bakteriologie, Parasitenkunde und Infektionskrankheiten. Abt. 1. Originale (West Germany) v189, 1963.