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Prospective study of enteropathogens in two communities of Misiones, Argentina
Insights
Children in Zaiman experienced more diarrhea due to higher enteropathogen infections, linked to poverty and environmental contamination. This study highlights the impact of these factors on child health.
Area of Science:
- Pediatrics
- Infectious Diseases
- Environmental Health
Background:
- Children under five are vulnerable to enteropathogens.
- Socio-economic disparities influence health outcomes.
- Environmental contamination is a key factor in diarrheal diseases.
Purpose of the Study:
- To epidemiologically examine enteropathogen infections in children from two communities with different socio-economic statuses.
- To identify the association between enteropathogens, diarrhea, and asymptomatic infections.
- To investigate the role of environmental contamination and poverty in child health.
Main Methods:
- Epidemiological examination of children under five over two years.
- Quarterly collection of fecal samples.
- Identification of enteropathogens, including bacteria, rotavirus, and parasites.
Main Results:
- Higher enteropathogen prevalence (73.9%) in Zaiman compared to Las Dolores (58.3%).
- Diarrheal episodes were more frequent in Zaiman (15.45%) than Las Dolores (12.35%), especially in spring-summer.
- Enterotoxigenic Escherichia coli (ETEC) was implicated in 85% of mixed infections.
Conclusions:
- Elevated enteropathogen carriage suggests significant environmental contamination.
- Poverty and environmental contamination are critical factors affecting children's health and contributing to diarrheal diseases.
- Targeted interventions are needed to address environmental hygiene and reduce the burden of infectious diseases in vulnerable populations.
Abstract:
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.