Abstract
Three cases of continued fever are described in which the Salmonella type “Dublin” was isolated from the blood. The cultural and serological behaviour of the three strains so obtained are compared with those of 34 strains of typical S. enteritidis (Gärtner) (including strains from commercial rat virus) and with those of 12 other strains of S. dublin (including six from calf-dysentery in Denmark). The suggestion is made that the “Dublin” type is of bovine habitat and that cows' milk is the vehicle of human infection.