Three new Salmonella types (S. ituri, S. kasenyi and S. niarembe) from the Belgian Congo; occurrence of Salmonella types in ducks.

9 strains of a new Salmonella type, S. ituri, were isolated from the feces of 2 apparently normal, adult ducks in Zega and of 4" apparently normal, adult ducks in Kasenyi (Lac Albert). The biochemical behaviour of this new type is as follows: No fer­ mentation of adonitol, inositol, lactose, salicin, and sucrose. No pro­ duction of indole, no liquefaction of gelatin (60 days 20 0 C.), and no decomposition of urea. Rapid fermentation of arabinose, dulcitol, gluc­ ose (with gas), maltose, mannitol (with gas), rhamnose, sorbitol, tre­ halose, and xylose. Positive reaction in Stern's glycerolfuchsin broth, and formation of H2S. Positive reaction in liquid ammonium media -containing glucose or sodium citrate. Positive reaction in d-tartrate, mueate, and sodium citrate after 1 day, in i-tartrate after 2-4 days. Nitrates were redueed, the Voges-Proskauer reaction was negative, and the methyl-red reaction positive. Serologieally the type has the formula 1, IV, XII: ZlO: 1,5. Cross­ absorptions showed that the 0 antigen is identieal with the 0 antigen of S. typhi murium var. copenhagen. The H antigen ZlO is identieal with the H antigen ZlO of S. haifa = 1, IV, V, XII: ZlO: 1,2. The H antigen 1,5 is not identieal with the H antigen 1,5 of S. thompson. The H serum of S. thompson phase 2 was absorbed eompletely by S. ituri phase 2, but the H serum of S. ituri phase 2 was not absorbed eompletely by S. thompson phase 2: H agglutinins for S. ituri phase 2 and S. panama phase 2 remained in the serum. By eombined absorption with S. thomp­ son phase 2 + S. panama phase 2 the H serum of S. ituri phase 2 was absorbed eompletely.