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Etiology of infantile enteritis in South Africa
Insights
Enteropathogenic Escherichia coli are a significant cause of infantile enteritis in South African infants, particularly during summer. Campylobacter fetus is also important in younger infants, indicating a complex etiology.
Area of Science:
- Pediatrics
- Microbiology
- Public Health
Background:
- Infantile enteritis is a significant health issue in developing nations.
- Previous research in South Africa identified various pathogens, but Escherichia coli (E. coli) strains from enteropathogenic serotypes are consistently linked to infant diarrhea.
- Rotaviruses, salmonellae, shigellae, and enterotoxigenic Enterobacteriaceae appear to play a lesser role.
Purpose of the Study:
- To investigate the etiology of infantile enteritis in South African infants.
- To identify the predominant bacterial and viral pathogens contributing to infant diarrhea in the region.
Main Methods:
- Review of recent and historical studies on infantile enteritis in South Africa.
- Analysis of pathogen recovery rates from infants with diarrhea compared to control groups.
- Focus on specific bacterial serotypes and viral agents.
Main Results:
- Enteropathogenic Escherichia coli serotypes are frequently isolated from infants with diarrhea, especially during summer months.
- Campylobacter fetus has emerged as an important pathogen, particularly in infants under nine months old.
- Other common enteropathogens like Salmonella, Shigella, and rotavirus play a less significant role.
Conclusions:
- Infantile enteritis in South Africa has a complex, multifactorial etiology.
- Enteropathogenic E. coli and Campylobacter fetus are key contributors to infant diarrhea.
- Further research is needed to fully elucidate the causes before implementing targeted preventive strategies.
Abstract:
Infantile enteritis constitutes a major health problem in developing countries. Several investigations into the etiology of this condition among various South African populations have been undertaken during the past few years. Recent studies of black urban infants have revealed that salmonellae, shigellae, enterotoxigenic Enterobacteriaceae, and rotaviruses play a relatively minor role in infantile enteritis. On the other hand, all studies, including a number performed several years ago, have demonstrated that Escherichia coli strains belonging to traditional enteropathogenic serotypes are more frequently recovered from patients with diarrhea than from matched control subjects. These bacteria are particularly prominent during the summer months at the height of the annual gastroenteritis epidemic. Recent studies have indicated the importance of Campylobacter fetus in infantile enteritis, especially in children younger than nine months. The data point to a complex multiple etiology of infantile enteritis in South Africa, which will require clarification before specific preventive measures can be instituted.