Pesquisa de enterobacteriáceas e enterovírus em crianças normais e com quadros diarréicos agudos

Abstract

A sample of 263 children between 0 and 24 months of age, among those attending the Lapa Health Center, São Paulo, Brazil, from October 1963 to September 1964 was studied. Cultures were performed for enteropathogenic Escherichia coli, Shigella, Salmonella, poliovirus, Coxsackie virus and ECHO virus in the feces. The commonest agent isolated was poliovirus (15.97% positive) followed by enteropathogenic Escherichia coli (10.65%), Shigella (9.51%), Coxsackie (7.22%) and finally Salmonella and ECHO (3.04% each). Of the 111 subjects that presented positive results, 16,22% were positive for two or more different agents. The above mentioned microorganisms were present in 42.21% of the children examined; of the 167 that presented diarrhea the percentage of positives was 47.90% and of the 96 that had no diarrhea, 32.29%. Association between diarrhea and the presence of an etiological agent was only demonstrated for the Shigella.Results were only suggestive for such association regarding E. coli 0111, Salmonella and Coxsackie A virus. Regarding the other agents there was no evidence of association.