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Intestinal parasites in man in Labrador, Canada
Summary
Human intestinal parasite infections were surveyed in Labrador, Canada. Rates of Entamoeba coli, E. histolytica, E. hartmanni, Giardia lamblia, and Diphyllobothrium sp. were lower than in other Northern Canadian communities.
Area of Science:
- Parasitology
- Public Health
- Canadian Ecology
Background:
- Labrador, a remote Canadian region, remained largely unsurveyed for human intestinal parasites.
- Previous studies indicated higher parasitic infection rates in other Northern Canadian communities.
Purpose of the Study:
- To investigate the prevalence of human intestinal parasites in Labrador.
- To establish baseline infection rates in an understudied Canadian population.
Main Methods:
- A parasitological survey was conducted in Labrador during the summer of 1977.
- Four hundred and one asymptomatic volunteers (Inuit, Naskapi, and white individuals, aged 1-72) provided stool samples.
- Samples were examined for the presence of intestinal parasites.
Main Results:
- The identified parasites included Entamoeba coli, Entamoeba histolytica, Entamoeba hartmanni, Giardia lamblia, and Diphyllobothrium sp.
- Infection rates for these parasites were found to be considerably lower than those reported in other Northern Canadian communities.
- Asymptomatic carriers represented the primary demographic studied.
Conclusions:
- The prevalence of common human intestinal parasites in Labrador is lower than previously observed in comparable Northern Canadian regions.
- This study provides crucial baseline data for future public health initiatives in Labrador.
- Further research is warranted to understand the factors contributing to lower infection rates.