Ascaris lumbricoides is considered as the largest intestinal nematode which infects man. It has the highest prevalence in area where sanitation level is low. A total of 159 Orang Asli (aborigine) school children from Kuala Kubu Bharu, Selangor participated in this study. The faecal specimens were collected and examined for A. lumbricoides ova using direct faecal smear and formalin-ether concentration techniques. The prevalence of ascariasis among the aboriginal school children in Kuala Kubu Bharu was 38.4%. With regards to the gender wise, the prevalence of infection was higher in males (44.9%) compared to females (33.3%). School children aged 9 years old showed the highest infection rate at 68.4%. From this study, it was found that the infection rate among the Orang Asli school children in Kuala Kubu Bharu was high despite they lived in a semi urban area with a better sanitation as compared to those living in the deep rural area.

Hookworm infection is one of the most common soil-transmitted helminth infections among the rural communities of the tropics. In Malaysia, the infection is commonly reported among the underprivileged communities living in poverty especially the aborigines (Orang Asli). While many studies focused on the prevalence of hookworm infection in rural communities, there is a lack of studies among the urban or semi urban aboriginal communities. The cross-sectional study was performed in a semi urban aboriginal primary school in Kuala Kubu Bharu. A total of 159 stool samples were collected among the school children. All samples were subjected to direct stool smear and formalin-ether concentration technique followed by microscopic observation. The overall prevalence of hookworm infection among the semi urban school children was low (7.55% ; 12/159) and the highest was among school children aged 11 years old. Male school children had higher prevalence of hookworm infection (10.14 % ; 7/69) in comparison to female students (5.55% ; 5/90). This study shows that living in semi urban area with better facilities and improved sanitation provide good chance and hope for prevention and control of hookworm infection among the aboriginal school children.

Trichuris trichiura is the most common soil-transmitted helminth affecting communities of the tropical regions. Living in places with lack of hygienic lifestyle, the aborigines were reported to have the highest prevalence of trichuriasis especially among children. A total of 159 aboriginal school children from a semi urban area in Kuala Kubu Bharu, Selangor were recruited in this study. Stool specimens collected from the school children were examined for Trichuris trichiura ova using direct stool smear and formalin-ether concentration technique. Trichuriasis is prevalent among the aboriginal school children (44.0%). The aboriginal school children aged 9 years old showed the highest prevalence of infection at 63.2%. There were no significant differences in the prevalence of trichuriasis according to gender between male (44.9%) and female students (43.3. From this study, it was found that despite living in a semi urban area with better sanitation and hygiene at school, trichuriasis was still prevalent among the aboriginal school children in Kuala Kubu Bharu