Diarrheic processes from an infectious origin constitute a frequent pathology during childhood. We have analyzed, from a epidemiological point of view, a series of 117 children diagnosed as having diarrhea and having stool cultures bacteriologically positive for Salmonella. Special reference has been made to the epidemiological chain of this infection. Of the patients studied, 68 (58.2%) were boys and 49 (41.8%) were girls. Their ages ranged between 1 month and 14 years. An epidemiological environment was recognized in 34.1% of the cases. The most frequent serotype was Salmonella Enteritidis (72.6%).