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Enteropathogens Associated with Diarrheal Disease in Infants of Poor Urban Areas of Porto Velho, Rondônia: a Preliminary Study Patrícia Puccinelli Orlandi; Tatiane Silva; Gleiciene Felix Magalhães; Fabiana Alves; Roberto Penna de Almeida Cunha; Rui Durlacher & Luiz Hildebrando Pereira da Silva Abstract One hundred and thirty cases of diarrhea and 43 age-matched controls, 0 to 5 years old, were studied in a pediatric outpatient unit from a poor peri urban area of Porto Velho, Rondônia. Eighty percent of diarrheal cases were observed in the groups under 2 years of age. Rotavirus (19.2%) was the most frequent enteropathogen associated with diarrhea, followed by Shigella flexneri (6.15%) and S. sonnei (1.5%) and Salmonella sp. (6.9%). Four cases of E. coli enterotoxigenic infections (3.1%), E. coli enteropathogenic (EPEC)(2.3%) one case of E. coli enteroinvasive infection (0.8%) and one case of Yersinia enterocolitica (0.8%) were also identified. Mixed infections were frequent, associating rotavirus, EPEC and Salmonella sp. with Entamoeba histolytica and Giardia lamblia. Keywords diarrheal disease, enteropathogens, rotavirus infections, epidemiology, Rondônia, Brazil

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