| [acute gastroenteritis: a prospective study of 445 cases]. | four hundred and fourty-five adult patients suffering acute gastroenteritis (ag) seen at the emergency ward of two hospitals in barcelona, have been studied. the aim of this work was to analyze the cause of ag in our community and to evaluate the utility of the biologic and clinical criteria chosen as indicators of bacteremia or of ag produced by invasive microorganisms. stool culture was positive in 157 patients (35%) of which 140 were salmonella sp. the most frequently isolated serotype was s. ... | 1990 | 2102531 |