[Biotypes of Salmonella typhimurium in Iraq]

207 Salmonella typhimurium strains isolated from childrens below three years (190 strains), adult patients (8 strains), health carriers (7 strains) or animals (2 strains) were studied with the biotyping scheme of Cordano, Richard and Vieu (1971). Five biovars were found and 76.8% of the strains were TTR+, Ino+, Tre+, d. Tar- (biovar d). In Irak the epidemiology of the Salmonella typhimurium human infections is associated with an high frequency of strains of Salmonella typhimurium 0:5- (var. Copenhagen), biovar d.