Prospective study of enteropathogens in two communities of Misiones, Argentina

Revista do Instituto de Medicina Tropical de São Paulo

Marta Vergara²  Marina Quiroga²  Sandra Grenon²  Eduardo Pegels²  Patricia Oviedo²  Jorge Deschutter²  Marta Rivas¹  Norma Binsztein¹  Raul Claramount¹ 

[1] ,National University of Misiones,Argentina

关键词: Acute diarrhoea;    Epidemiology;    Infection;    Risk factor;    Morbidity;   

DOI  :  10.1590/S0036-46651996000500004

来源: SciELO

【 摘 要 】

Children under five years of age, from two communities of different socio-economic strata (97 from Zaiman and 55 from Las Dolores) were examined epidemiologically during 2 years, by means of quarterly visits of the working team, who carried out the collection of faecal samples. During the study, one or more enteropathogens were identified in 73.9% of samples in children from Zaiman and in 58.3% of the samples from Las Dolores, being associated to diarrhoea in 70.5% and to asymptomatic infections in 65.7%. The number of diarrheic episodes was higher in Zaiman (15.45%) than in Las Dolores (12.35%), being more frequent in the spring-summer seasons. In Zaiman, the bacterial enteropathogen proportion was relevantly higher (p< 0.005) in children with diarrhoea, whereas the presence of parasites was more frequent in asymptomatic children (p< 0.01). Rotavirus had an even distribution within diarrheic and asymptomatic children. In Las Dolores, no relevant differences were found in the detection of enteroparasites between diarrheic and asymptomatic children. Mixed infections were detected; enterotoxigenic Escherichia coli (ETEC)-rotavirus and ETEC-parasites being the most frequent ones. ETEC was involved in 85% of these infections. These data, together with the high enteropathogen carriage, suggest an elevated level of environmental contamination. The latter plays an important role in diarrheic diseases, and added to the most extreme poverty, it affects children's lives.

【 授权许可】

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