732 SALMONELLA 



Salm. typhi-suis A.F. VIi, Yl^, VII ... c ^^ 1, 5 . . . 



This organism was isolated from young pigs suffering from a typhoid-like disease by 

 Glasser (1909, 1910). The monophasic type, which exists in the group phase only and 

 is sometimes known as the voldagsen variety, was isolated from a similar disease in pigs 

 by Dammann and Stedefeder (1910). These organisms represent the " Ferkeltyphus " 

 bacillus of German literature (see also Neukirch 1918, Andrewes and Neave 1921, White 

 1926, Kauffmann 1931, 1934a, Bartel 1938). Salm. typhi-suis is almost antigenically 

 identical with Salm. cholerce-suis. It differs, however, in growing poorly on ordinary 

 media and in its fermentation reactions. It forms gas very slowly and sparsely ; it usually 

 fails to ferment mannitol or does so late ; it does not attack citrate, mucate, or the tar- 

 trates ; and it produces a slight permanent acidity in litmus milk. It also ferments 

 trehalose, which Salm. cholerce-suis does not. The specific phase can be demonstrated 

 in the voldagsen variety by growth in presence of immune serum. So far as is known, 

 Salm. typhi-suis does not naturally infect animals other than the pig, nor does it give 

 rise to disease in man. It seems to be very uncommon in the United States (Bruner 

 and Edwards 1940). 



Salm. thompson A.F. VI^, Vlg, VII ... k ^^ 1,5... 



Isolated from cases of food poisoning in man by Scott (1926), and since by numerous 

 other workers. The herlin variety, which exists in the group phase, was isolated from 

 cases of food poisoning by Kauffmann (1929«, h ; see also Kauifmann 1931, 1934rf, Boecker 

 and Kauffmann 1930, Kauffmann and Mitsui 1930, Clauberg 1931, Seligmann and Clauberg 

 1932, Boecker and Silberstein 1932). Salm. thompson is very common in Great Britain, 

 where it is about the third most frequent Salmonella type met with in outbreaks of food 

 poisoning. It was demonstrated in the mesenteric lymph nodes of normal pigs by Scott 

 (1940), and was found once in a rat by Khalil (1938) at Liverpool. Knorr (1931) isolated 

 it from Chinese egg yolk. In the United States it appears to be uncommon (Edwards 

 and Bruner 1943). Has been isolated from imported American dried egg. 

 Salm. Cardiff A.F. VI, VII ... k «-^ 1, 10 . . . 



Isolated in South Wales from a case of acute gastro-enteritis, and recognized as a new 

 type by Taylor at Oxford and Edwards in Kentucky (Taylor, Edward, and Edwards 1945). 

 Salm. virchow A.F. VI^, VIj, VII ... r ^-> 1, 2, 3 . . . 



Isolated from a case of acute gastro-enteritis in Germany. Antigenic structure deter- 

 mined by Kauffmann (19.306, 1931, 1934(7). May give rise to a prolonged febrile disease. 

 Salm. infantis A.F. VI^, VIj, VII ... r ^^ 1,5... 



Isolated from the blood of an infant in New Haven Hospital suffering from diarrhcea 

 and mild fever. Described by Wheeler and Borman (1943). Biochemically indistinguish- 

 able from Salm. virchow. 

 Salm. oranienburg A.F. VIj, VIj, VII . . . m, t . . . — . 



Isolated from fseces of normal persons and of patients suffering from gastro-enteritis 

 (see Kauffmann, 19306, 1931, 1934a, Clauberg 1932, Seligmann and Clauberg 1932, Boecker 

 and Silberstein 1932). Its first demonstration in animals was by Edwards (1936), who 

 found it responsible for a disease of baby quail in the United States. It has been found 

 in chickens in the United States (Edwards 1939) ; judging from the frequency Avith which 

 it has been isolated from American dried egg imj)orted into Great Britain, it must be 

 a common parasite of fowls. In human beings it gives rise to infantile diarrhcea (Hor- 

 maeche, Peluflfo and Aleppo 1940), and to gastro-enteritis in adults. Since the intro- 

 duction of American dried egg in 1941, numerous sporadic cases of infection with this 

 organism and at least one outbreak have been reported in England. 

 Salm. potsdam A.F. VI^, Vlg, VII . . . 1, v < — > e, n, Zjs . . . 



Isolated from cases of food poisoning. Examined by Kauifmann and Mitsui (1930; 

 see also Kauffmann 1931, 1934a, Clauberg 1931, Seligmann and Clauberg 1932). Contains 

 the 2^7 and z^g antigens in Phase 2 in addition to z^j. Has been found in imported American 

 spray-dried egg. 



