Sechter I, Cahan D, Beaud R, Le Minor L
Centre national des Salmonella, Jerusalem, Israel.
Zentralbl Bakteriol. 1990 Sep;273(4):455-8.
A strain of Citrobacter freundii possessing the factors O:4,27 of Salmonella, without factor O:12, may be used for preparation of a diagnostic serum for identification of strains of Salmonella sub-species I belonging to O-group B, without absorption.