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[Clinical significance of isolation of enteropathogenic "E. coli" (author's transl)]
Insights
Enteropathogenic Escherichia coli (E. coli) was more frequently isolated from hospitalized children with diarrhea than from healthy controls. However, widespread carriage in controls suggests serotyping is crucial for epidemiological studies.
Area of Science:
- Microbiology
- Pediatrics
- Epidemiology
Background:
- Enteropathogenic Escherichia coli (E. coli) is a significant cause of diarrheal disease in children.
- Understanding the prevalence of E. coli in both sick and healthy children is essential for public health.
- Previous studies have indicated varying rates of E. coli isolation, necessitating further investigation in specific populations.
Purpose of the Study:
- To determine the frequency of enteropathogenic E. coli isolation in hospitalized children with diarrhea.
- To compare these frequencies with those in non-diarrheal control groups.
- To assess the epidemiological significance of E. coli serotyping in diarrheal illness.
Main Methods:
- Stool cultures were analyzed from 100 hospitalized children with diarrhea (Group I).
- Control groups included 100 hospitalized children without diarrhea (Group II) and 100 children from a nursery (Group III).
- Isolation percentages of enteropathogenic E. coli were calculated and statistically compared between groups.
Main Results:
- Enteropathogenic E. coli was isolated from 24% of children with diarrhea (Group I).
- Isolation rates in control groups were 12% (Group II) and 11% (Group III).
- A statistically significant difference (p < 0.05) was observed between Group I and both control groups (II and III).
Conclusions:
- Hospitalized children with diarrhea showed a significantly higher isolation rate of enteropathogenic E. coli compared to controls.
- The presence of enteropathogenic E. coli in 11.5% of the control population highlights the need for careful interpretation in individual cases.
- Serotyping of E. coli strains is fundamental for accurate epidemiological assessment of diarrheal diseases.
Abstract:
The frequency of isolation of enteropathogenic "Escherichia coli" from the stool cultures of 100 hospatilized children with diarrhea (group I) was analyzed, having as control 200 children withou diarrhea: 100 admitted at the hospital (group II) and 100 from a nursery (group III). The isolation percentiles were 24% in group I, 12% in group II and 11% in group III. When compared with controls, there was significant difference (p < 0.05) between groups II and III and group I. However, the results of this study are not applicable for an isolated case because 11.5% of the control population were carriers of an enteropathogenic "E. coli". Serotipation therefore, must have a fundamental epidemiological value.