Additionally, 576 children, 305 boys and 271 girls in the age range of 2-15 years old from four schools, namely, Wat Krab Phuang, Wat Kung Waree, Wat Sakat Namman and Wat Sao Hin were examined by the Scotch tape technique for the presence of Enterobius eggs. The overall infection rate was 14.1% (Table 2). The percentage of infected boys and girls was 15.7 and 12.2, respectively. Wat Sao Hin school had the highest infection rate (19.3%). All infected schoolchildren with parasites were individually treated.