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Intestinal parasites and bacteria in Aboriginal children in South West Australia
Insights
Giardia lamblia and Hymenolepis nana are common intestinal parasites in young Aboriginal children in Western Australia. Infections showed a strong correlation, with H. nana linked to lower weight and diarrhea.
Area of Science:
- Pediatric infectious diseases
- Parasitology
- Public health
Background:
- Intestinal parasitic infections are a significant health concern in Indigenous populations.
- Understanding the prevalence and risk factors for specific parasites is crucial for targeted interventions.
Purpose of the Study:
- To investigate the prevalence of intestinal parasites, specifically Giardia lamblia and Hymenolepis nana, in Aboriginal children under six years old in Southwest Australia.
- To explore correlations between these parasitic infections and demographic, clinical, and anthropometric factors.
Main Methods:
- Cross-sectional study involving 697 Aboriginal children under 6 years of age.
- Stool sample analysis to detect parasitic infections.
- Statistical analysis to determine prevalence and correlations.
Main Results:
- Giardia lamblia was found in 26% of children, and Hymenolepis nana in 13.9%.
- A significant correlation was observed between G. lamblia and H. nana infections (P < 0.001).
- H. nana prevalence was higher in underweight children (P < 0.02) and those with diarrhea (P < 0.01). G. lamblia was more common in rural areas.
Conclusions:
- Giardia lamblia and Hymenolepis nana are prevalent intestinal parasites in this population.
- Co-infection is common, and H. nana is associated with indicators of poor health such as low weight and diarrhea.
- Findings highlight the need for public health strategies addressing parasitic infections in young Aboriginal children.
Abstract:
In a study of intestinal parasites in 697 Aboriginal children under the age of 6 years in South-west Australia, Giardia lamblia was recorded in 26% and Hymenolepis nana in 13.9%. G. lamblia infections occurred above 4 months of age, and H. nana infections above 18 months of age. There was a close correlation between infection with these two species (chi 2, P less than 0.001). Campylobacter jejuni, the predominant bacterial species recorded, was isolated in 2.3%, and was related to bowel symptoms in one child. G. lamblia was more prevalent in the country areas than in the Perth metropolitan area (chi 2, P less than 0.05. H. nana was more prevalent in children whose weight was below the third percentile (chi 2, P less than 0.02), and in those with diarrhoea (chi 2, P less than 0.01). There were strong correlations between low weight (below third percentile), a history of recent diarrhoea, and discharging ears.