[Utilization of a solid nutrient medium for the serological method of detecting the causative agent of typhoid in patients' feces].

The causative agent of typhoid fever can be revealed in feces of patients not only by the bacteriological, but also by the serological method, if the material is preliminarily grown on hard nutrient media; Ploskirev's medium proved to be the optimal. It is suggested that microbial cultures left on the ager in Petri dishes after the bacteriological study should be used for bacteriological analysis. In a number of cases it was possible to reveal the causative agent of typhoid fever in feces by the serological method, although no coproculture was isolated bacteriologically.