Sự khác biệt tỷ lệ nhiễm sán lá gan nhỏ Opisthorchis viverrini của người dân trên 15 tuổi tại 2 vùng nông thôn và ven biển của tỉnh Phú Yên

A cross-sectional study was conducted from June to December 2012 with sample size of 375 objects to explore the Opisthorchis viverrini infection status of at An Hoa Commune by the Kate-Katz thick smear technique. Results showed that Opisthorchis viverrini presented in An Hoa Commune, prevalence rate is 13.5 percent. There was a significant different between the rate of Opisthorchis viverrini infection of seaside and rural inhabitants. Risk of Opisthorchis viverrini infection among seasides inhabitants was 2 times comparing to rural inhabitants. Average infection intensity is 51.25 EPG. Most of objects (94.2 percent) are infected by Opisthorchis viverrini at first level, and 5.8 percent at the second level.